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A172534
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Number of n X n 0..1 arrays with row sums 12 and column sums 12.
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2
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 6227020800, 676508133623135814000, 65662040698002721810659005184000, 6892692735539278753058456514221737762215000
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OFFSET
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1,13
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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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