A033947 Smallest primitive root (in absolute value) of n-th prime.

1, -1, 2, -2, 2, 2, 3, 2, -2, 2, 3, 2, 6, 3, -2, 2, 2, 2, 2, -2, 5, -2, 2, 3, 5, 2, -2, 2, 6, 3, 3, 2, 3, 2, 2, -5, 5, 2, -2, 2, 2, 2, -2, 5, 2, -2, 2, 3, 2, 6, 3, -2, 7, -3, 3, -2, 2, -2, 5, 3, 3, 2, 5, -2, 10, 2, 3, 10, 2, 2, 3, -2, -2, 2, 2, -2, 2, 5, 3, 21, 2, 2, -5, 5, -5, 2, 3, 13, 2, -2