Google Sheets – Generate Range of Serial Numbers by Formula

formulasgoogle sheetsgoogle-sheets-arrayformula

I want to produce an array of numbers from 1 to n, where n is a value in another cell. So if the cell value is 10, I want to generate an array of the numbers 1 to 10.

I found this resource which appears to answer a similar question:

https://infoinspired.com/google-docs/spreadsheet/auto-serial-numbering-in-google-sheets/

But I think that it requires you to drag down the fill handle, also I didn't really understand from the resource how to apply this formula to generating n numbers. I want a formula which generates the numbers 1 to n without using the fill handle.

Is there a way to do this?

Best Answer

EDIT :
The easiest way to generate an array of sequential number in Google Sheets is the =Sequence function.

Syntax : SEQUENCE(rows, columns, start, step)
SEQUENCE function on Google's Help Center

=Sequence(A2)

There's a way without dragging a cell with Arrayformula :

=ArrayFormula(ROW(INDIRECT("A1:A"&A2))) Where A2 is the n value

enter image description here

There's no incrementation in Google spreadsheet so the only way is to find a build-in counter : the rows/columns.
ROW() and COLUMN() return the adress of a cell or an array with Arrayformula. Now your case is using a dynamic range, to do so we use INDIRECT()

INDIRECT() returns a cell reference specified by a string.

Using & to concatenate the first row number (1) with the n value.

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