A072211 a(n) = p-1 if n=p, p if n=p^e and e<>1, 1 otherwise; p a prime.

1, 1, 2, 2, 4, 1, 6, 2, 3, 1, 10, 1, 12, 1, 1, 2, 16, 1, 18, 1, 1, 1, 22, 1, 5, 1, 3, 1, 28, 1, 30, 2, 1, 1, 1, 1, 36, 1, 1, 1, 40, 1, 42, 1, 1, 1, 46, 1, 7, 1, 1, 1, 52, 1, 1, 1, 1, 1, 58, 1, 60, 1, 1, 2, 1, 1, 66, 1, 1, 1, 70, 1, 72, 1, 1, 1, 1, 1, 78, 1, 3, 1, 82, 1, 1, 1, 1, 1, 88, 1, 1, 1, 1, 1