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Search: id:A025037
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A025037 Number of partitions of { 1, 2, ..., 5n } into sets of size 5. +0
1
1, 126, 126126, 488864376, 5194672859376, 123378675083039376, 5721809435651034101376, 470624547891733205872277376, 63887753000850674430367526069376, 13536281554808237495608549953475109376 (list; graph; listen)
OFFSET

1,2

FORMULA

(5n)!/(n!(5!)^n). (Christian G. Bower bowerc(AT)usa.net Sep 15 1998).

CROSSREFS

Sequence in context: A027491 A165028 A078206 this_sequence A051335 A145586 A082456

Adjacent sequences: A025034 A025035 A025036 this_sequence A025038 A025039 A025040

KEYWORD

nonn

AUTHOR

David W. Wilson (davidwwilson(AT)comcast.net)

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.


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