A074695 Greatest common divisor of n and floor(n^(1/2))^2.

1, 1, 1, 4, 1, 2, 1, 4, 9, 1, 1, 3, 1, 1, 3, 16, 1, 2, 1, 4, 1, 2, 1, 8, 25, 1, 1, 1, 1, 5, 1, 1, 1, 1, 5, 36, 1, 2, 3, 4, 1, 6, 1, 4, 9, 2, 1, 12, 49, 1, 1, 1, 1, 1, 1, 7, 1, 1, 1, 1, 1, 1, 7, 64, 1, 2, 1, 4, 1, 2, 1, 8, 1, 2, 1, 4, 1, 2, 1, 16, 81, 1, 1, 3, 1, 1, 3, 1, 1, 9, 1, 1, 3, 1, 1, 3, 1, 1, 9, 100