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A278412
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Number of nX6 0..2 arrays with rows and columns in lexicographic nondecreasing order but with exactly two mistakes.
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1
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357, 166762, 58069125, 20086951472, 6584300364020, 1920315533923360, 495717541750226155, 116167496151879183500, 25419584353649348727704, 5288610598245403858539329, 1051786588251592754050785317
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history;
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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=2
..0..0..2..0..0..1. .0..0..1..2..2..1. .1..1..2..1..2..2. .0..2..0..1..0..1
..0..2..1..2..1..1. .0..0..2..1..0..2. .0..2..0..1..0..0. .1..1..1..2..0..1
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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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