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A172574 Number of 3*n X 2*n 0..1 arrays with row sums 6 and column sums 9 1
0, 0, 1, 31082452632000, 91880966659006902855367890000, 4623755659802671553551698062433487687144266000, 3253924815644553490177047049527865204808456401213720382274024000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

R. H. Hardin, Table of n, a(n) for n=1..10

CROSSREFS

Sequence in context: A121843 A206852 A171264 * A229069 A122126 A318575

Adjacent sequences:  A172571 A172572 A172573 * A172575 A172576 A172577

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 06 2010

STATUS

approved

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Last modified April 20 03:36 EDT 2019. Contains 322294 sequences. (Running on oeis4.)