A163409 Subsequence of composite terms of A008475.

4, 8, 9, 9, 8, 16, 9, 10, 25, 15, 27, 10, 32, 14, 12, 21, 16, 12, 15, 14, 25, 49, 27, 20, 16, 15, 22, 12, 33, 16, 64, 18, 16, 21, 26, 14, 39, 28, 18, 18, 21, 81, 14, 22, 45, 32, 16, 20, 27, 34, 49, 24, 35, 51, 20, 22, 21, 15, 55, 18, 40, 24, 28, 33, 22, 24, 16, 121, 63, 44, 35, 125, 18, 128, 46, 20

Offset: 1

Author

Leroy Quet, Jul 27 2009

Keywords

• nonn

Crossrefs

A008475, A114519, A163408

Formula

a(n) = A008475(A163408(n)).

Extensions

More terms from Max Alekseyev, Oct 14 2012