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A172891
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Number of n X n 0..6 arrays with row sums 12 and column sums 12
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1
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0, 1, 406, 3789991, 252171345610, 92945759551815326, 155517962859038458507570, 1010575567197244536303853333716, 22475445868427318276367515097088853904, 1540307034615560553585359584559295771487536000
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OFFSET
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1,3
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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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