A069719 Integer quotients arising in A068418: sum of proper divisors is divided by cototient of terms of A068418.

2, 2, 2, 2, 3, 2, 2, 2, 3, 3, 3, 2, 3, 3, 3, 2, 2, 3, 3, 2, 2, 3, 3, 4, 2, 3, 2, 2, 3, 4, 2, 2, 3, 3, 3, 2, 2, 3, 4, 3, 2, 3, 3, 2, 3, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 4, 2, 3, 3, 2, 2, 2, 4, 2, 2, 2, 3, 3

Offset: 1

Author

Labos Elemer, Apr 05 2002

Keywords

• nonn
• more

Examples

			n=39: m=A068418(39)=130141440, sigma[m]-m=405550080, m-Phi[m]=101387520, quotient=4=a(39).
		

Crossrefs

Cf. A068418, A001065, A000203, A051953, A068414, A069714, A069737.

Formula

a(n) = A001065(A068418(n)) - A051953(A068418(n)).

Extensions

a(47)-a(68) from Donovan Johnson, May 27 2011