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A172568 Number of 3*n X 9 0..1 arrays with row sums 3 and column sums n 1
1680, 90291600, 12025780892160, 2407147216735338000, 607807501825156719166080, 178355054529362612768336870400, 58142871081888953760431694254592000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

R. H. Hardin, Table of n, a(n) for n=1..25

CROSSREFS

Sequence in context: A282402 A156422 A172562 * A172673 A172768 A172667

Adjacent sequences:  A172565 A172566 A172567 * A172569 A172570 A172571

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 06 2010

STATUS

approved

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Last modified April 24 22:26 EDT 2019. Contains 322446 sequences. (Running on oeis4.)