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Search: id:A090982
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| A090982 |
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Partitions(n)*Partitions(n+1). |
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+0
1
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| 1, 2, 6, 15, 35, 77, 165, 330, 660, 1260, 2352, 4312, 7777, 13635, 23760, 40656, 68607, 114345, 188650, 307230, 496584, 793584, 1257510, 1976625, 3083850, 4769688, 7332360, 11191180, 16972670, 25582260, 38342568, 57123858, 84683907
(list; graph; listen)
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OFFSET
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0,2
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EXAMPLE
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a(3)=15 because Partitions(3)*Partitions(4)=3*5=15
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MAPLE
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seq(numbpart(k)*numbpart(k+1), k=0..32) ; - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jun 06 2007
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MATHEMATICA
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Table[PartitionsP[n + 1]*PartitionsP[n], {n, 0, 36}]
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PROGRAM
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(PARI) a(n)=numbpart(n)*numbpart(n+1) (Charles R Greathouse IV (charles.greathouse(AT)case.edu), Sep 02 2009)
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CROSSREFS
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Cf. A000041, A000070.
Sequence in context: A014303 A076060 A126764 this_sequence A153517 A136302 A116404
Adjacent sequences: A090979 A090980 A090981 this_sequence A090983 A090984 A090985
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KEYWORD
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easy,nonn
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AUTHOR
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Wouter Meeussen (wouter.meeussen(AT)pandora.be), Feb 28 2004
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