A023527 Least odd prime divisor of p(n)*p(n-1) + 1, or 1 if p(n)*p(n-1) + 1 is a power of 2.

3, 7, 1, 3, 3, 3, 3, 3, 3, 167, 3, 7, 3, 3, 3, 7, 17, 3, 7, 3, 3, 7, 3, 1, 3, 3, 3, 3, 3, 3, 3, 3, 7, 3, 3, 3, 1, 7, 3, 31, 7, 3, 3, 3, 3, 3, 5, 7, 3, 3, 3, 1, 3, 3, 1, 7, 23, 3, 7, 3, 3, 3, 3, 3, 3, 3, 3, 79, 3, 3, 3, 7, 3, 7, 41, 3, 7, 3, 3, 3