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A172650
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Number of 2*n X n 0..2 arrays with row sums 5 and column sums 10.
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1
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0, 0, 90, 34145664, 101471705778601, 1563133410663239958840, 101720498887190010630546323580, 23601511081513772065907556838530960960, 17017920144305424073117333502327304544668289632
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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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