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A278368
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Number of nX4 0..2 arrays with rows and columns in lexicographic nondecreasing order but with exactly three mistakes.
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1
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0, 1465, 184341, 16073852, 1185617520, 71569971497, 3591161445506, 156509651392363, 6152096549069001, 222794729697445622, 7488691646485617892, 233747568592586647588, 6769664767684601132112, 181975875729049004082635
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OFFSET
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1,2
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=3
..1..0..2..2. .1..1..0..0. .0..1..1..0. .2..2..2..2. .0..2..2..1
..0..1..2..0. .0..1..1..0. .2..2..2..0. .0..0..1..0. .0..2..0..1
..0..1..2..1. .0..1..1..1. .0..2..1..2. .2..1..2..1. .1..1..0..0
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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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