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A172596
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Number of 5*n X 4*n 0..1 arrays with row sums 4 and column sums 5
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1
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1, 273957842462220, 2460737690938850798370391240644900, 15195407946323194013765595656097788013666363361791048000, 13223617955495651593814858107477805060086684838739019514933477474642809905360000
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OFFSET
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1,2
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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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