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A172540
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Number of n X n 0..1 arrays with row sums 9 and column sums 9.
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2
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0, 0, 0, 0, 0, 0, 0, 0, 1, 3628800, 158815387962000, 9254768770160124288000, 769237071909157579108571190000, 96986285294151066094112970262797953280, 19092174983817380047229162651397270697765056000
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OFFSET
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1,10
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LINKS
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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