how look for the first five terms of recursively defined sequence(an-1+5)

Question

like how to do it when is subtraction

 

Answer 1

You have the formula, presumably.

What you typed, however, does not correctly show the recursion formula.

Using the correct formula, you of course need a starting value, i.e. what is a₁?

To compute a₂, substitute n=2 into the recursion formula.

To compute a₃, substitute n=3.

Etc.