Question

Given the sequence 1, 9, 25, 49, 81, ..., find the explicit formula. A. an=(2n−1)2an=(2n−1)2 B. an=n2−1an=n2−1 C. an=−4n+2an=−4n+2 D. an=−2n+2

Answer 1

F(n) = {f(1) = 1
         {f(n) = (2n - 1)²