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A251998
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Number of (n+2)X(6+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 2 4 5 or 7
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1
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21680096, 4946174244, 1265816542694, 324452741031424, 83204478074887540, 21346172975835532882, 5477004140225156474736, 1405295402341047031585982, 360572463634696346650972140, 92516184100747798001449294374
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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..0..0..0..3....0..0..0..0..0..0..0..3....0..0..0..0..0..0..0..3
..3..0..0..3..0..3..0..3....0..0..1..0..0..0..3..3....0..3..3..3..3..0..3..3
..3..3..0..0..3..3..3..3....3..0..0..0..0..0..3..3....3..0..0..3..3..0..0..3
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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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