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A172598 Number of 6*n X n 0..1 arrays with row sums 3 and column sums 18 1
0, 0, 1, 2308743493056, 674741194624071430134879600, 4286480050914725856131217361234536200970000, 422006703164863149555124419847097220761027785050113408280000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

R. H. Hardin, Table of n, a(n) for n=1..11

CROSSREFS

Sequence in context: A026081 A159304 A159447 * A321708 A077304 A034658

Adjacent sequences: A172595 A172596 A172597 * A172599 A172600 A172601

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 06 2010

STATUS

approved

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Last modified February 6 23:12 EST 2023. Contains 360111 sequences. (Running on oeis4.)