A166281 Number of perfect partitions of the nonprimes A018252.

1, 2, 3, 4, 2, 3, 8, 3, 3, 8, 8, 8, 3, 3, 20, 2, 3, 4, 8, 13, 16, 3, 3, 3, 26, 3, 3, 20, 13, 8, 8, 3, 48, 2, 8, 3, 8, 20, 3, 20, 3, 3, 44, 3, 8, 32, 3, 13, 8, 3, 13, 76, 3, 8, 8, 3, 13, 48, 8, 3, 44, 3, 3, 3, 20, 44, 3, 8, 3, 3, 3, 112

Offset

1,2

Links

Table of n, a(n) for n=1..72.

Formula

a(n) = A002033(A018252(n)-1). - R. J. Mathar, Oct 14 2009

Crossrefs

Cf. A002033, A018252, A035004.

Sequence in context: A360378 A256443 A046068 * A330954 A107468 A023632

Adjacent sequences: A166278 A166279 A166280 * A166282 A166283 A166284

Keyword

nonn

Author

Juri-Stepan Gerasimov, Oct 10 2009

Extensions

Entries checked by R. J. Mathar, Oct 14 2009

Status

approved