A156898 a(n) = the smallest squarefree integer >= the n-th prime power.

1, 2, 3, 5, 5, 7, 10, 10, 11, 13, 17, 17, 19, 23, 26, 29, 29, 31, 33, 37, 41, 43, 47, 51, 53, 59, 61, 65, 67, 71, 73, 79, 82, 83, 89, 97, 101, 103, 107, 109, 113, 122, 127, 127, 129, 131, 137, 139, 149, 151, 157, 163, 167, 170, 173, 179, 181, 191, 193, 197, 199, 211