# Excel SEQUENCE function - create a number series automatically

In this tutorial, you will learn how to create a number sequence in Excel with formulas. Additionally, we'll show you how to auto generate a series of Roman numbers and random integers - all by using a new dynamic array SEQUENCE function.

The times when you had to put numbers in sequence in Excel manually are long gone. In modern Excel, you can make a simple number series in a flash with the Auto Fill feature. If you have a more specific task in mind, then use the SEQUENCE function, which is specially designed for this purpose.

## Excel SEQUENCE function

The SEQUENCE function in Excel is used to generate an array of sequential numbers such as 1, 2, 3, etc.

It is a new dynamic array function introduced in Microsoft Excel 365. The result is a dynamic array that spills into the specified number of rows and columns automatically.

The function has the following syntax:

SEQUENCE(rows, [columns], [start], [step])

Where:

Rows (optional) - the number of rows to fill.

Columns (optional) - the number of columns to fill. If omitted, defaults to 1 column.

Start (optional) - the starting number in the sequence. If omitted, defaults to 1.

Step (optional) - the increment for each subsequent value in the sequence. It can be positive or negative.

• If positive, subsequent values increase, creating an ascending sequence.
• If negative, subsequent values decrease, producing a descending sequence.
• If omitted, the step defaults to 1.

The SEQUENCE function is only supported in Excel for Microsoft 365, Excel 2021, and Excel for the web.

## Basic formula to create a number sequence in Excel

If you are looking to populate a column of rows with sequential numbers starting at 1, you can use the Excel SEQUENCE function in its simplest form:

To put numbers in a column:

SEQUENCE(n)

To place numbers in a row:

SEQUENCE(1, n)

Where n is the number of elements in the sequence.

For example, to populate a column with 10 incremental numbers, type the below formula in the first cell (A2 in our case) and press the Enter key:

`=SEQUENCE(10)`

The results will spill in the other rows automatically. To make a horizontal sequence, set the rows argument to 1 (or omit it) and define the number of columns, 8 in our case:

`=SEQUENCE(1,8)` If you'd like to fill a range of cells with sequential numbers, then define both the rows and columns arguments. For instance, to populate 5 rows and 3 columns, you'd use this formula:

`=SEQUENCE(5,3)` To start with a specific number, say 100, supply that number in the 3rd argument:

`=SEQUENCE(5,3,100)` To generate a list of numbers with a specific increment step, define the step in the 4th argument, 10 in our case:

`=SEQUENCE(5,3,100,10)` Translated into plain English, our complete formula reads as follows: ### SEQUENCE function - things to remember

To efficiently do a sequence of numbers in Excel, please remember these 4 simple facts:

• The SEQUENCE function is only available with Microsoft 365 subscriptions and Excel 2021. In Excel 2019, Excel 2016 and earlier versions, it does not work since those versions do not support dynamic arrays.
• If the array of sequential numbers is the final result, Excel outputs all the numbers automatically in a so-called spill range. So, be sure you have enough empty cells down and to the right of the cell where you enter the formula, otherwise a #SPILL error will occur.
• The resulting array can be one-dimensional or two-dimensional, depending on how you configure the rows and columns arguments.
• Any optional argument that is not set defaults to 1.

## How to create a number sequence in Excel - formula examples

Though the basic SEQUENCE formula does not look very exciting, when combined with other functions, it takes on a whole new level of usefulness.

### Make a decreasing (descending) sequence in Excel

To generate a descending sequential series, such that each subsequent value is less than the preceding one, supply a negative number for the step argument.

For example, to create a list of numbers starting at 10 and decreasing by 1, use this formula:

`=SEQUENCE(10, 1, 10, -1)` ### Force a two-dimensional sequence to move vertically top to bottom

When populating a range of cells with sequential numbers, by default, the series always goes horizontally across the first row and then down to the next row, just like reading a book from left to right. To get it to propagate vertically, i.e. top to bottom across the first column and then right to the next column, nest SEQUENCE in the TRANSPOSE function. Please note that TRANSPOSE swaps rows and columns, so you should specify them in the reverse order:

TRANSPOSE(SEQUENCE(columns, rows, start, step))

For example, to fill 5 rows and 3 columns with sequential numbers starting at 100 and incremented by 10, the formula takes this form:

`=TRANSPOSE(SEQUENCE(3, 5, 100, 10))`

To better understand the approach, please have a look at the screenshot below. Here, we input all the parameters in separate cells (E1:E4) and create 2 sequences with the below formulas. Please pay attention rows and columns are supplied in different order!

Sequence that moves vertically top to bottom (row-wise):

`=TRANSPOSE(SEQUENCE(E2, E1, E3, E4))`

Regular sequence that moves horizontally left to right (column-wise):

`=SEQUENCE(E1, E2, E3, E4)` ### Create a sequence of Roman numbers

Need a Roman number sequence for some task, or just for fun? That's easy! Build a regular SEQUENCE formula and warp it in the ROMAN function. For example:

`=ROMAN(SEQUENCE(B1, B2, B3, B4))`

Where B1 is the number of rows, B2 is the number of columns, B3 is the start number and B4 is the step. ### Generate an increasing or decreasing sequence of random numbers

As you probably know, in new Excel there is a special function for generating random numbers, RANDARRAY, which we discussed a few articles ago. This function can do a lot of useful things, but in our case it cannot help. To generate either an ascending or descending series of random whole numbers, we'll be needing the good old RANDBETWEEN function for the step argument of SEQUENCE.

For example, to create a series of increasing random numbers that spills in as many rows and columns as specified in B1 and B2, respectively, and start at the integer in B3, the formula goes as follows:

`=SEQUENCE(B1, B2, B3, RANDBETWEEN(1, 10))`

Depending on whether you want a smaller or bigger step, supply a lower or higher number for the second argument of RANDBETWEEN. To make a sequence of decreasing random numbers, the step should be negative, so you put the minus sign before the RANDBETWEEN function:

`=SEQUENCE(B1, B2, B3, -RANDBETWEEN(1, 10))` Note. Because the Excel RANDBETWEEN function is volatile, it will generate new random values with every change in your worksheet. As the result, your sequence of random numbers will be continuously changing. To prevent this from happening, you can use Excel's Paste Special > Values feature to replace formulas with values.

## Excel SEQUENCE function missing

Like any other dynamic array function, SEQUENCE is only available in Excel for Microsoft 365 and Excel 2021 that support dynamic arrays. You won't find it in pre-dynamic Excel 2019, Excel 2016, and lower.

That's how to create sequence in Excel with formulas. I hope the examples were both useful and fun. Anyway, thank you for reading and hope to see you on our blog next week!

Excel SEQUENCE formula examples (.xlsx file)

## You may also be interested in

1. Can I use the sequence function if I want to repeat number 12 times then incrementing 1 until I reached 24 it goes back to number 1? Thanks

• I don't think this can be done with a sequence function. Write down 24 numbers and copy them as many times as necessary.

2. Hi ,

Seek your guidance how shall i proceed built the sequence formula for below scenario in excel template
1.scenario 1
13/9/ABC/01
13/9/ABC/02
13/9/ABC/03
13/9/ABCa/04
13/9/ABC/05

13/9 > referring to DD/MM base on today/weekday case ID receive
ABC - defaulted
01 - refer to sequence number for each entry of the row

2. Scenario 2 sequence format
202309120001
202309120002
202309120003
202309120004
"20230912" - referring to current request date receive for the data entry
"0001", 002,003 - referring to sequence number of request received for the day
if the subsequent date no request, then will no case ID generate
Assume case receive on 20230915, then the case ID number will be 2020309150001.....follow by 202309150002...etc

Thank you.

• Hi! Use the TEXT function to write dates and numbers in the desired format.

=TEXT(A1,"mm.dd")&"."&"ABC/"&TEXT(SEQUENCE(10,1,1,1),"00")

3. I need to create a sequence that consists of two columns, the first being Serial No., which contains sequence 1 to 100,000. Columns. 2 is having a code that will have a format based on the serial number value from column 1, i.e., 1 to 1000, code value will be 1, column 1001-2000 column 2 value is 2, which means after each 1000 the code value will change. Can you please help find a simple way to do that?

• Hi! You can find the formula for the first column in the article above. For the second column, you can use the rounding to thousands formula:

=ROUNDUP(A1/1000,0)

Or you can use the sequence formula, as has been described many times in the comments to this article:

=CEILING(SEQUENCE(100000,1,1,1)/1000,1)

4. How wil autogenerate responses for 200 respondents, already have for 55 responses in excel

5. i have a set of responses from 55 respondents, but i need like 200 ,how will i autogenerate the remaining responses .

6. Is it possible
300/7/2023
301/7/2023
302/7/2023
303/7/2023

• Hi! Create a sequence as described in the article above and add a text string using the & operator.

=SEQUENCE(10,1,300,1)&"/7/2023"

7. Hello, I have these names in A1:A8 and need to enumerate them on C1:C8, excluding the ones that say treasury. The sequence also depends on the year selected in B1:B8
A B
1 Other property 2023
2 Passenger vehicle 2023
3 Non-passenger vehicle 2023
4 Treasury 2023
5 Other Property 2023
6 Non-passenger vehicle 2024
7 Treasury 2024
8 Non-passenger vehicle 2024

Expected sequence in C
1 01
2 02
3 03
4
5 04
6 01
7
8 02

• Hi! The expected sequence you described is not very clear to me. Also note that you will be able to use the year if it is written in a separate column as a number.

8. Hello, Unfortunately I'm stuck with Excel 2016 and unable to use the SEQUENCE function. Do you have any recommendations for a formula that will create a list of numbers between two values, separated by a certain number? For example, all numbers between 8000 and 10000 seperated by 5. I'll need to do this many times and a formula would be extremely helpful!

• Hello! To create a sequence of numbers, you can use the ROW function. The ROW function returns the row number. For example:

=80000+(ROW(A1)-1)*5

Copy this formula down the column.

9. Hi Alexander,

How to sequence the following please:

K0151/right
K0151/left
K0152/right
K0152/left
K0153/right
K0153/left

I am not good at it. Thank you for your help!

• Hi! The formula below will do the trick for you:

="K" & TEXT(CEILING(SEQUENCE(45,1,1,1)/2,1)+150,"0000") & CHOOSE(MOD(SEQUENCE(45,1,1,1),2)+1,"/left","/right")

10. Hi, How do I sequence with sequence no depends on value on multiple cells/columns, for example:
Col-A Col-B Col-C Col-D (which is the sequence, which value starts can be random value), Thanks a lot!
111 RP C 05
111 RP C 06
AAA DW R 25
111 RP C 07
AAA DW S 55
AAA DW S 56
111 RP C 08

• Hi! With Excel formulas, you can only make a sequence of numbers. You have text. Also, there is no pattern in your data that can be written as a formula.

I need a particular pattern in which every number -start from number 1- exist in every successive 5 cells in one column like from A1 to A5 filled with number 1
From A6 to A10 filled with number 2 and so on.
How can I do this?

• Hi! If I understand your task correctly, try the following formula:

=CEILING(SEQUENCE(50,1,1,1)/5,1)

12. Hi,

How to convert range (column A1 to B2) into array in single cell for word office 365?

Example:
A1=4
B1=8

Convert array in single cell like this
Result: {4;5;6;7;8}

note:
Previous version word use below formula but not work on office 365.
{ =ROW(INDIRECT(A1&":"&B1)) }

• Hi! Brackets are not needed in this formula: =ROW(INDIRECT(A1&":"&B1))
In previous versions of Excel, this formula was written as an array formula. In Excel365 you don't need to do this.

13. Hello,

I'm after a sequence for creating quote numbers, It would take the Year (2023) Month (04) - then a numerical sequence from 1 down till X.
From the date the quote was provided.
Unless the next month starts, then it would be 2023-05-1, etc
Say Cell Values of 2023-04-1, 2023-04-2, 2023-04-3, 2023-05-1, 2023-05-2, 2023-06-1, 2023-06-2, 2023-06-3, 2023-06-4, 2023-06-5.
3 Quotes in April, 2023
2 Quotes in May, 2023
5 Quotes in June 2023.

Effectively the counter resets at the start of each month.
Thanks

• Hi! If there is some logical sequence in your data, describe it. Unfortunately, I do not see it.

• Hi Alexander

Logical Sequence - Quote increments by 1 until such time as the month changes, then it resets back to 1.
However, the months do not have a set number of quotes, but will be dictated when a new quote opportunity comes in.
| A | |B|
2023-05 - 1 (May 2023, Quote # 1) Date is 10th May
2023-05 - 2 (May 2023, Quote # 2), Date is 15th May.
2023-06 - 1 (June 2023, Quote #1), Date is 3rd June.

So the number i would like sequenced is made up of 2 components.

Part A is a Function of the date that the quote is created. It uses the Year and Month,
Part B is an incremental step. Starting at 0, it adds an increment of 1 for each new quote created. This continues to increment whilst the Month the quotes are created are the same, when the new month rolls in, the number resets to 0.

So i see the sequence as an increment of 1 integer, then using a while or IF function, Whilst date of creation is X Month add 1 to integer and retain month/year (Part A). If month now is X+1 (May to June), then B=1 and month now set to X+1.

• Hi! If I understand your task correctly, the following formula should work for you:

=TEXT(B2,"yyyy-mm")&"-"&(COUNTIF(\$A\$1:A1,"*"&TEXT(B2,"yyyy-mm")&"*")+1)

Use the TEXT function to get the year and month from the date as text. The COUNTIF function will count the number of values with that year and month.

14. Sir maintaining a large number of business transaction data, we use "purchase" for every purchase transaction, "Sale" for every sale transaction and "Payment" for every payment etc. So i want to prepare a Purchase ledger. for this purpose i want to assign a specific reference number to 1st transaction of Purchase that number should be generated in sequence whenever any other purchase related entry posted.
Example:
5001 Purchase
9001 Sale
5002 purchase
4001 Sale
5003 Purchase

• Hi! Enter the starting numbers in A1:A2 manually. The formula for A3:

=COUNTIF(\$B\$1:B2,B3) + INDEX(\$A\$1:A2,MATCH(B3,\$B\$1:B2,0))

After that you can copy this formula down along the column.

15. I want to create an excel sheet that records dates for maintenance of an equipment but for every time we update the date it should count so we know how many times we have done the maintenance. What can I do? If there are any equations to be written please assist.

16. I want to make a sequence that looks like this, divided by lines and collums, but it can only have 4 digits, from 1 to 1000

0001 | 0002 | 0003 | 0004 | 0005 | 0006 | 0007 | 0008 | 0009 | 0010 | 0011 | 0012 | 0013 | 0014 | 0015 | 0016 | 0017 | 0018 | 0019 | 0020 | 0021 | 0022 | 0023 | 0024 | 0025 | 0026 | 0027 | 0028 | 0029 | 0030 | 0031 | 0032 | 0033 | 0034 | 0035 | 0036 | 0037 | 0038 | 0039 | 0040 | 0041 | 0042 | 0043 | 0044 | 0045 | 0046 | 0047 | 0048 | 0049 | 0050 | 0051 | 0052 | 0053 | 0054 | 0055 | 0056 | 0057 | 0058 | 0059 | 0060 | 0061 | 0062 | 0063 | 0064 | 0065 | etc

17. Hi, Could you help with the below:

We need to have a cell to enter the number, example 10. So, here 10 refers to the number of classes and we should get the same number of rows/columns to be added automatically to input the date & time for each of the class.

If I input 5 in the target cell. Then it should create 5 rows/columns for each date & time. The date & time should be in sequence.

• Hi! Your task is not completely clear to me. To recommend a formula to you, show an example of the result you want to get.

18. Is it possible to get number as below-

20220801
20220901
20221001
20221101
20221201
20230101

19. I have a date usage sheet for our inventory where someone inputs the start date, how many days used, then the calculated end date. I have given the user 5 dates to set the start and days used. Is it possible to have the sequence function do all these with one function entry? Is it possible to have multiple starts and stops?

EX:
Start Date Days Used End Date
4/1/2023 21 4/22/2023
5/1/2023 4 5/5/2023
5/10/2023 8 5/18/2023
6/1/2023 10 6/11/2023
6/15/2023 3 6/18/2023

Sequence would go 4/1/2023 then fill the dates in until 4/22/2023, 5/1/2023......5/5/2023,5/10/2023.....5/18/2023 and so on.

• I think this might work, if I understand what you're after:

=SEQUENCE(1, + 1,,1)

You could also calculate the by calculating the number of days between and to make it more dynamic.

• Oops...used the wrong formatting in the formula.

=SEQUENCE(1,[Days Used] + 1, [Start Date],1)

Hopefully this shows up correctly

20. HI,
I have a set of data in one column, say Company Name in A1, PO No-A2,MRN Numbers in A3,A4,A5 etc. How do i bring these datas in different coulmn in sucha a way that All the company name in 1 coulmn, related POs in next column, MRNs in next column. I cannot use transpose since it will arrange all the data horizontally, not in a table manner.

Thank you

• Hi! I don't really understand why you can't use transpose. To help you, give an example of the source data and the desired result.

21. Hi!

Tried figuring out through the well done article, but didn't manage to find my way.
I'm looking for the following to be implemented in a booking sheet I'm working on where certain conditions apply;

Once data has been entered in a specific cell, it generates a random number in another cell which will function as a reference to that booking.
The number generated must partly consist of specific values from two given cells, as in the following logic: "data cell 1" - "random number generated" - "data cell 2" .
The number generated is preferably in sequence which can not be duplicated, ie must respect what is generated in other cells (same column).

So in other words;

Once data has been entered in certain cells (column A) then the corresponding cell (column B) generates a random number with the above conditions.

Hope I was able to convey this understandably enough, and thanks in advance for any help!

22. How do I sequence this?
Is there a formula?
Ex. Wk13 up to WK50
I want to sequence it and stop doing it manually

• Create a sequence of numbers using the SEQUENCE function and combine it with a text string.
Try this formula:

="WK"&SEQUENCE(38,1,13,1)

23. Hi!
I have a set of project codes (example format is 90-00480-90GT001-ProjectName 1) in column D. The 90-00480 prefix is entered manually in column A, as is the project name suffix in column C.

In column B, the 90GT001 part is a sequential number, and I need to ensure that only the next available number in the sequence is used, when a new code needs to be generated. I've tried using the SEQUENCE function in column B and formatted the column to include leading zeros, then concatenated the prefix and suffix using the formula =A2&"-"&"90GT"&B2&"-"&C2, however this results in 90-00480-IT-90GT1-ProjectName 1 (the leading zeros do not pull through so the code format is incorrect).

How can I fix this?

Thanks

• Hi!
To convert a number to a text string in the desired format with leading zeros, use the TEXT function:

=A2&"-"&"90GT"&TEXT(B2,"000")&"-"&C2

• Absolutely fantastic! Thanks Alex!

24. 1st row: 2000 0 0 2000 0 0 and so on over a month period. How to do it with a click?

Next step:
If i have multiple rows.. each has a different sequence of numbers.. how to fill a sheet over a month period (30 columns)?

25. Hi, how do I create a sequence based on values from another cell.
Example: Column "A" has values such as General Admin, Finance, Marketing, etc and I would like column B to generate a sequence such as below please.

Department Code
Finance FIN-01
Marketing MKT-01
Marketing MKT-02
Marketing MKT-03
Marketing MKT-04
Finance FIN-02

• Hi!
Use the COUNTIF function to set ordinal numbers for equal values. Use the TEXT function to write down these numbers with two digits.

=A1&"-"&TEXT(COUNTIF(\$A\$1:A1,A1),"00")

• Thank you so much!! it worked.

26. Hi, how to generate a sequence of say:
1,1,1 (3 times)
2,2,2 (3 times)
3,3,3 (3 times) e.t.c all in one column?

Meaning

1
1
1 (3 times)

2
2
2 (3 times)

3
3
3 (3 times) e.t.c

all in one column?

• Hi!
To repeat the same number several times in a sequence, try this formula

=CEILING(SEQUENCE(50,1,1,1)/3,1)

• Thank you so much Sir for your response.

27. It's possible create a sequences like this 10,-10,20,-20,30,-30 ..... 100,-100 and start again 10,-10,20,-20 ???

• Hi!
I don't think you can do it with a formula. Just write down those 20 numbers and copy down the column.

• Given A1 contains the number of terms you want:

=2.5*((-1)^(MOD(SEQUENCE(A1)-1,20)+1))*((-2)*(MOD(SEQUENCE(A1)-1,20)+1)+(-1)^(MOD(SEQUENCE(A1)-1,20)+1)-1)

• by the way, I determined this by:

1. Copying the series of terms into Wolfram Alpha to identify an equation to produce the series --> a(n) = 5/2(-1)^n(-2n+(-1)^n-1)
2. Replicating the formula in Excel, using SEQUENCE(20) instead of x --> =2.5*((-1)^SEQUENCE(20))*((-2)*SEQUENCE(20)+(-1)^SEQUENCE(20)-1)
3. Modifying the formula to create a repeating series using MOD(ULO) function --> SEQUENCE(20) --> (MOD(SEQUENCE(A1)-1,20)+1)

• Wow it works!!! thank you so much

• Hi,

I would like to generate a reference number in sequential order every time a new data is added in the next row. Example:

In the A1: reference is “RED1”.
If a new data is added in A2 it will automatically generate “RED2” as a reference number. And so on. Which will look like something like this:
A1: RED1
A2: RED2
A3: RED3

This will be in relation to other data in the table.

Thanks

• Hi!
You can create a sequence of values with a formula like this.

="RED"&SEQUENCE(10,1,1)

But if you add some value to A2, then you can only replace it with RED2 using VBA.

28. Hi, how to make sequence lets say of : 0 21 times, 20 15 times, 40 10 times, 60 6 times, 80 3 times, and 100 1 time; all of it in one row?

• Hi! If there is a pattern in your sequence, describe it.

• Hi, how to generate a sequence of say:
1
1
1

2
2
2

3
3
3

4
4
4

1000
1000
1000

e.t.c all in one column?

29. Hi

The below is a part of report, I need to add a numbers 1-7 in the end of the text for every new product description. Can you help please?

15 Pouch Box (595 * 241 * 125 mm)-1
15 Pouch Box (595 * 241 * 125 mm)-2
15 Pouch Box (595 * 241 * 125 mm)-3
15 Pouch Box (595 * 241 * 125 mm)-4
15 Pouch Box (595 * 241 * 125 mm)-5
15 Pouch Box (595 * 241 * 125 mm)-6
15 Pouch Box (595 * 241 * 125 mm)-7
4 Slice Clear Plastic Tray (156 Cut)-1
4 Slice Clear Plastic Tray (156 Cut)-2
4 Slice Clear Plastic Tray (156 Cut)-3
4 Slice Clear Plastic Tray (156 Cut)-4
4 Slice Clear Plastic Tray (156 Cut)-5
4 Slice Clear Plastic Tray (156 Cut)-6
4 Slice Clear Plastic Tray (156 Cut)-7
7 Month Caramel - RSPO SG (M/ SO2)-1
7 Month Caramel - RSPO SG (M/ SO2)-2
7 Month Caramel - RSPO SG (M/ SO2)-3
7 Month Caramel - RSPO SG (M/ SO2)-4
7 Month Caramel - RSPO SG (M/ SO2)-5
7 Month Caramel - RSPO SG (M/ SO2)-6
7 Month Caramel - RSPO SG (M/ SO2)-7

• Hi!
To determine the sequential number of a product, use COUNTIF function.
Use this formula:

=A1&"-"&COUNTIF(\$A\$1:A1,A1)

• Thank you for quick response, you saved my life:)

30. Hi!
I want to generate a random sequence based on previous data.
E.g., Column A - E has values from 1 to 45

So if I have 100 rows of such a sequence, is there a formula that can predict/generate the next sequence?

31. How to predict the series for
100
200
300
500
600
700
900

• Hi!

32. Hello,

I need a formula that would return the sequence for this below:

Part Number: Sequence: (Formula for this)
47009 1
47009 2
47009 3
47014 1
47014 2

• Hi!
What is the pattern in your data?

• Hello,
There is no pattern as each part number repeats itself differently. I need the sequence to add different descriptions to each one.

• Hi!
A sequence can be created if there is a pattern.

33. How can I generate a 5-digit PID with a check digit on it let's say a batch of 100 PIDs?

• Hi!
We have a tool that can solve your task in a couple of clicks – Random Generator. It offers a variety of ways to get random values, which you can look out at this link.
It is available as a part of our Ultimate Suite for Excel that you can install in a trial mode and check how it works for free.
To use the formula, read the article above carefully.

34. Hi
How do I present such data in a sequence.
1- 51
51-101
101-151

35. if i have the minimum and maximum of different batches of serials in two columns, which function can i call to know if a number is between the two columns. For example, min: 1 and Max: 100 in two columns, how do i find out if 15 is contained in that range for different range and different number instead of having to open up the 1 to 100

36. Hi, how do I create a sequence by 1 in a cell that depends on the max number of other cells (H) and if it is selected "NEW" (C) and also depends on the year (F)

I have this formula: =MAX(IF(\$C\$3:C17=C18,IF(\$F\$3:F17=F18,\$H\$3:H17)))+1

However, a year can have two max numbers which I need to take the sequence from; for instance, 110943000 and 110943700. I would still need the sequences on 110943001, 110943701, 110943002, 110943702, and so on. The formula is only giving me the sequences from 110943700 which is the maximum.

C18 = NEW
D18 = 110943000 (ID)
F18 = IFERROR(VLOOKUP(D18,\$D\$3:\$F\$17,3,FALSE),"-") = 9 {this is how the year is calculated), there's no issue with this one}
H18 = MAX(IF(\$C\$3:C17=C18,IF(\$F\$3:F17=F18,\$H\$3:H17)))+1 = 110943701 {instead of 110943001}

it only works in this case:
C18 = NEW
D18 = 110943700 (ID)
F18 = 9
H18 = MAX(IF(\$C\$3:C17=C18,IF(\$F\$3:F17=F18,\$H\$3:H17)))+1 = 110943701

Thank you!