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A172919
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Number of n X n 0..7 arrays with row sums 7 and column sums 7.
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4
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1, 1, 8, 666, 381424, 976395820, 8575979362560, 215717608046511873, 13590707419428422843904, 1933216160887575268614599040, 571506744082785127089569166384000
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OFFSET
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0,3
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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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