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A251988
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Number of (n+2)X(4+2) 0..2 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 1 or 5
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1
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1182549, 43957515, 2351304453, 143941074215, 9220975438331, 598720936854481, 39038339681025033, 2548856771274494679, 166490920337454372853, 10876714257781843015027, 710600087055415290568237
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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..2..0....0..0..2..0..2..0....0..0..0..2..1..0....0..0..2..0..0..0
..0..2..0..2..0..0....0..0..2..2..2..0....0..0..2..1..1..1....2..0..2..0..0..0
..0..2..2..0..1..2....0..0..0..2..0..2....2..2..0..1..2..1....0..0..0..2..2..2
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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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