How to arrange numbers in a certain order?

Question

excel

Good day. Faced a problem that I need somehow in this function:
addPok(3,1)
addPok(3,2)
addPok(3,3)
Leave the number n1 ( addPok(n1,n2) ) unchanged, and increase n2 by -order (1,2,3,4,5 etc.)
How can this be done? Perhaps there is some way. I tried to do this in the table, but he does not want to count them in this way, he duplicates them.

Answer 1

well, for example, use the formula "=string()"