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A172944
Number of n X n 0..8 arrays with row sums 8 and column sums 8.
4
1, 1, 9, 1035, 981541, 4855258305, 94459713879600, 5945968652327831925, 1046591482728407939338275, 459761347800901006933211075259, 460129061613105910803354676484897475
OFFSET
0,3
LINKS
CROSSREFS
Column k=8 of A257493.
Sequence in context: A197612 A004809 A099127 * A277829 A286396 A174636
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 06 2010
STATUS
approved