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A172797
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Number of 7*n X 7 0..3 arrays with row sums 3 and column sums 3*n
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1
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4662857360, 19483897303054057473600, 177485739636656023698217362159890000, 2255071025881975002973276574847623754650721480000, 34489400617513696317244454709620842599380338820310459110031360
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OFFSET
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1,1
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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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