A086152 a(n) = floor(2^(n/phi(n))), where phi is A000010(n).

2, 4, 2, 4, 2, 8, 2, 4, 2, 5, 2, 8, 2, 5, 3, 4, 2, 8, 2, 5, 3, 4, 2, 8, 2, 4, 2, 5, 2, 13, 2, 4, 3, 4, 2, 8, 2, 4, 3, 5, 2, 11, 2, 4, 3, 4, 2, 8, 2, 5, 3, 4, 2, 8, 2, 5, 2, 4, 2, 13, 2, 4, 3, 4, 2, 9, 2, 4, 2, 7, 2, 8, 2, 4, 3, 4, 2, 9, 2, 5, 2, 4, 2, 11, 2, 4, 2, 4, 2, 13, 2, 4, 2, 4, 2, 8, 2, 5, 3, 5, 2, 9, 2