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Search: id:A050368
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A050368 Number of ways to factor n into distinct factors with 2 kinds of 2, 3 kinds of 3, ... +0
1
1, 2, 3, 5, 5, 12, 7, 16, 12, 20, 11, 39, 13, 28, 30, 42, 17, 60, 19, 65, 42, 44, 23, 126, 35, 52, 55, 91, 29, 150, 31, 116, 66, 68, 70, 219, 37, 76, 78, 210, 41, 210, 43, 143, 150, 92, 47, 378, 70, 170, 102, 169, 53, 290, 110, 294, 114, 116, 59, 570, 61, 124, 210 (list; graph; listen)
OFFSET

1,2

FORMULA

Dirichlet g.f.: prod{n=2 to inf}((1+1/n^s)^n).

CROSSREFS

Adjacent sequences: A050365 A050366 A050367 this_sequence A050369 A050370 A050371

Sequence in context: A092749 A138181 A133278 this_sequence A079024 A097453 A079125

KEYWORD

nonn

AUTHOR

Christian G. Bower (bowerc(AT)usa.net), Oct 15 1999.

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Last modified October 9 14:06 EDT 2008. Contains 144831 sequences.


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