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A172567 Number of 3*n X n 0..1 arrays with row sums 4 and column sums 12 1
0, 0, 0, 1, 168168000, 666569141498660400, 12218892645550878420052920000, 959794291357783500093926796260896462300, 289360589460480315988823313632867603848637000544000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

R. H. Hardin, Table of n, a(n) for n=1..17

CROSSREFS

Sequence in context: A251473 A102337 A295456 * A172590 A172693 A172784

Adjacent sequences: A172564 A172565 A172566 * A172568 A172569 A172570

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 06 2010

STATUS

approved

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Last modified January 30 10:34 EST 2023. Contains 359943 sequences. (Running on oeis4.)