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A317221
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Number of nX7 0..1 arrays with every element unequal to 1, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
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1
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8, 5824, 272012, 18667993, 1193567097, 77171164500, 4981964443017, 321779228843527, 20780911115253208, 1342134239899231736, 86681283982725408330, 5598303502470257891647, 361566306104618861816148
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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=5
..0..0..0..1..1..1..1. .0..0..0..1..1..1..0. .0..0..0..1..1..1..0
..0..1..0..0..0..0..0. .0..1..0..0..1..1..0. .0..1..0..0..0..1..1
..0..0..0..0..1..0..0. .0..0..0..1..1..1..0. .0..0..0..1..1..1..0
..0..0..0..1..1..1..0. .0..0..0..1..1..1..1. .0..0..0..1..1..1..0
..0..1..0..1..0..1..1. .0..1..0..1..0..0..1. .0..1..0..0..1..0..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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