Consider the sequence an = 6an−1 −9an−2 for n ≥ 2 , and a0 = 5 , a1 = 18. Use strong induction to prove that an = (n + 5)3n for all nonnegative integers n. Divide your work into the following parts.(a) base case(s) (b) inductive step including i. state the induction hypothesis ii. state the claim that you wish to prove (using the hypothesis) iii. complete the inductive step by proving your claim.