How can I design a rule that adds the number 3 to numbers between a certain range?

Hi,

I want list of numbers between 2 no's which are addition of 3
Eg:- If starting no is 1 and ending is 18 then required list of No's to be like 1,4,7, 10,13,16

I try in different ways, I finally post in forum.

I found in appian there is no iteration method or rule for iterating the value for every iteration like MNI in process model
But we have some looping functions like apply, reduce, reject. But no use to find out the answers

Please help me.

OriginalPostID-229512

OriginalPostID-229512