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A166281 Number of perfect partitions of the non-primes A018252. +0
1
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 (list; graph; listen)
OFFSET

1,2

FORMULA

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

CROSSREFS

Cf. A002033, A018252, A035004.

Sequence in context: A049865 A070771 A046068 this_sequence A107468 A023632 A107572

Adjacent sequences: A166278 A166279 A166280 this_sequence A166282 A166283 A166284

KEYWORD

nonn

AUTHOR

Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Oct 10 2009

EXTENSIONS

Entries checked by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Oct 14 2009

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Last modified November 22 20:51 EST 2009. Contains 167312 sequences.


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