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A049527
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Number of possible sets {{row sums},{column sums}} of an n X n+1 matrix with entries from {0,1,-1} and all row and column sums distinct.
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2
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1, 2, 3, 6, 10, 22, 39, 94, 174, 464, 886, 2610
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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,hard,nice
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AUTHOR
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STATUS
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approved
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