Write the first five terms of the sequence defined recursive

Write the first five terms of the sequence defined recursively a1= 39, ak + 1= ak-8

Solution

a₁=39

a_k+1=a_k-8

when k=2

a₂=a₁-8=39-8=31

when k=2

a₃=a₂-8=31-8=23

when k=3

a₃=a₂-8=15

when k=4

a₄=a₃-8=7

when k=5

a₅=a₄-8=-1

39,31,23,15,7,-1