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A268105
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Number of 2Xn 0..n arrays with every repeated value in every row and column greater than or equal to the previous repeated value.
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2
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4, 81, 4096, 378225, 56791296, 12650850576, 3926389806144, 1621309443347169, 859957083064464100, 569966660957291549809, 461690884178405990127504, 448823671401604409584451856, 515728792901852626366779599104
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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=5
..0..0..0..5..5....0..0..0..3..0....0..0..0..3..4....0..0..1..1..0
..0..3..5..2..3....0..0..3..0..4....0..0..1..3..3....0..3..4..3..4
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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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