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A251640
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Number of (n+2)X(3+2) 0..2 arrays with some row, column, diagonal or antidiagonal in every 3X3 subblock summing to 3
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1
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10560127, 2000922455, 381543775543, 72419349199493, 13754155206272959, 2612757595388089625, 496271873758017462775, 94263944561519739600469, 17904985214572029962053397, 3400956636618899216826213209
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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..0..0..1....0..0..0..0..1....0..0..0..0..2....0..0..0..0..1
..2..1..1..1..0....2..1..0..1..1....0..0..2..2..0....0..1..2..1..0
..2..1..0..1..2....2..1..2..2..1....0..0..1..0..1....0..2..0..2..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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