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Search: id:A134737
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| A134737 |
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Number of partitions of the n-th partition number into positive parts not greater than n. |
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+0
3
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| 1, 2, 3, 6, 13, 44, 131, 638, 3060, 22367, 167672, 2127747, 26391031
(list; graph; listen)
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OFFSET
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1,2
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LINKS
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Eric Weisstein's World of Mathematics, Partition
Eric Weisstein's World of Mathematics, Partition Function P
Index entries for sequences related to partitions
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FORMULA
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a(n) = A026820(A026820(n,n),n) = A026820(A000041(n),n).
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MATHEMATICA
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(* first do *) Needs["DiscreteMath`IntegerPartitions`"] (* then *) a[n_] := Length@ IntegerPartitions[ PartitionsP[n], n] (* Robert G. Wilson v (rgwv@rgwv.com), Nov 11 2007 *)
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CROSSREFS
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Sequence in context: A065845 A137273 A135967 this_sequence A030733 A122839 A121556
Adjacent sequences: A134734 A134735 A134736 this_sequence A134738 A134739 A134740
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KEYWORD
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nonn,more
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AUTHOR
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Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 07 2007
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