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A252881
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Number of (n+2)X(5+2) 0..2 arrays with every consecutive three elements in every row having 2 or 3 distinct values, in every column 1 or 2 distinct values, in every diagonal 2 distinct values, and in every antidiagonal 2 distinct values, and new values 0 upwards introduced in row major order
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0
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1575377, 14424475, 194162037, 3149891207, 55869292808, 1012679185415, 18545078593815, 341129594109617, 6284858844962008, 115915003810017493, 2139108920633332442
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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=1
..0..0..1..2..2..0..0....0..1..2..1..0..0..1....0..0..1..2..0..0..2
..0..0..1..1..0..1..0....0..0..2..0..0..1..0....0..0..1..2..2..0..1
..0..2..2..1..0..0..2....0..1..2..1..2..0..1....0..2..2..0..2..1..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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