A075176 Inverse function of N -> N injection A075175.

1, 2, 3, 6, 0, 4, 0, 12, 5, 10, 15, 30, 0, 20, 0, 60, 0, 0, 9, 18, 0, 0, 0, 36, 0, 0, 45, 90, 0, 0, 0, 180, 0, 0, 0, 0, 0, 8, 0, 24, 0, 0, 0, 0, 0, 40, 0, 120, 0, 0, 0, 0, 0, 0, 0, 72, 0, 0, 0, 0, 0, 0, 0, 360, 7, 14, 21, 42, 0, 28, 0, 84, 35, 70, 105, 210, 0, 140, 0, 420, 0, 0, 63, 126, 0, 0

Offset: 0

Author

Antti Karttunen, Sep 13 2002

Keywords

• nonn

Comments

a(n) = 0 for those n which do not occur as the values of A075175. All positive natural numbers occur here once.

Crossrefs

a(A075175(n)) = n for all n >= 1. Differs from A075174 for first time at a(18) = 9, while A075174(18) = 0.