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A268106
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Number of 3Xn 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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0
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8, 729, 262144, 232608375, 427979206656, 1422917069386176, 7780188517552009728, 65282814314072669856303, 797471492064362985335311000, 13607369559752757079941998010377
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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..0..0....0..0..0..0..0....0..0..0..0..0....0..0..0..0..0
..0..0..4..1..5....0..0..5..0..5....0..0..5..1..3....0..0..3..2..1
..0..3..2..5..4....0..3..4..0..0....3..3..5..1..2....0..3..4..3..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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