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

1,2

FORMULA

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

CROSSREFS

Sequence in context: A165028 A178189 A078206 * A051335 A186995 A145586

Adjacent sequences:  A025034 A025035 A025036 * A025038 A025039 A025040

KEYWORD

nonn

AUTHOR

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

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Last modified February 16 09:00 EST 2012. Contains 205904 sequences.