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A316930
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Number of nX6 0..1 arrays with every element unequal to 0, 2, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.
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1
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1, 272, 5114, 242908, 10973407, 504420842, 23331389753, 1082511783630, 50268964898040, 2335445337904301, 108522596510808705, 5043152673374074529, 234367636152187821684, 10891778297372461533674, 506176787613385987355419
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OFFSET
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1,2
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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..1..0..1..0. .0..0..1..1..1..1. .0..0..1..0..0..1. .0..0..1..1..0..1
..0..0..1..0..1..0. .0..0..1..0..0..0. .0..0..1..0..1..0. .0..0..1..1..0..0
..0..0..1..0..0..0. .0..0..0..0..0..1. .0..0..0..1..1..0. .0..0..0..0..1..0
..0..0..1..0..0..1. .1..1..1..0..1..1. .1..1..0..0..1..1. .1..1..0..0..0..1
..1..1..1..0..0..1. .0..0..1..0..1..0. .0..1..0..1..0..0. .0..0..1..1..1..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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