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A172932 Number of n X n 0..7 arrays with row sums n and column sums n 1
1, 3, 55, 10147, 22069251, 602351808741, 215717608046511873, 1046211088756248825569475, 70241609479301663107223809203427, 66348852357002987700605359091266362631153 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

R. H. Hardin, Table of n, a(n) for n=1..12

CROSSREFS

Sequence in context: A172822 A172873 A172907 * A172950 A172962 A110058

Adjacent sequences: A172929 A172930 A172931 * A172933 A172934 A172935

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 06 2010

STATUS

approved

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Last modified December 7 04:29 EST 2022. Contains 358649 sequences. (Running on oeis4.)