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A134737 Number of partitions of the n-th partition number into positive parts not greater than n. +0
3
1, 2, 3, 6, 13, 44, 131, 638, 3060, 22367, 167672, 2127747, 26391031 (list; graph; listen)
OFFSET

1,2

LINKS

Eric Weisstein's World of Mathematics, Partition

Eric Weisstein's World of Mathematics, Partition Function P

Index entries for sequences related to partitions

FORMULA

a(n) = A026820(A026820(n,n),n) = A026820(A000041(n),n).

MATHEMATICA

(* first do *) Needs["DiscreteMath`IntegerPartitions`"] (* then *) a[n_] := Length@ IntegerPartitions[ PartitionsP[n], n] (* Robert G. Wilson v (rgwv@rgwv.com), Nov 11 2007 *)

CROSSREFS

Sequence in context: A065845 A137273 A135967 this_sequence A030733 A122839 A121556

Adjacent sequences: A134734 A134735 A134736 this_sequence A134738 A134739 A134740

KEYWORD

nonn,more

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 07 2007

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.


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