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A251681
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Number of (n+2)X(7+2) 0..2 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 2 or 4
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1
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29839, 100307, 632811, 4748285, 38111915, 310560937, 2525118941, 20534822225, 167304924269, 1363558488437, 11111887091463, 90560094584979, 738127134171193, 6016586690293155, 49042746875602219, 399756370338968651
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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..1..0..0..1..2..0..1....0..0..0..0..0..0..0..1..0
..2..1..0..0..1..2..0..1..2....0..1..0..0..0..0..0..0..0
..1..0..0..1..2..0..1..2..0....0..0..0..0..0..0..0..0..0
..0..0..1..2..0..1..2..0..1....0..0..0..0..1..0..0..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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