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A305487
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Number of nX6 0..1 arrays with every element unequal to 1, 2, 3, 6 or 8 king-move adjacent elements, with upper left element zero.
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1
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5, 157, 295, 125, 7007, 23229, 52124, 581383, 2463954, 8570618, 56143574, 267901337, 1116868133, 6024191561, 29624539835, 134241410418, 674874922277, 3322616624721, 15652901052092, 76798796724976, 376381323915795
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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..1..1..0..0..1. .0..1..1..1..0..1. .0..1..0..0..1..0. .0..1..0..0..0..0
..0..0..1..0..1..0. .1..1..1..0..0..1. .1..1..1..0..1..1. .1..0..1..1..1..1
..0..0..0..0..0..1. .1..1..1..1..1..1. .1..1..1..1..1..1. .1..1..1..1..1..1
..0..1..0..0..0..1. .1..0..1..1..1..1. .1..0..1..1..0..1. .1..1..0..1..1..0
..0..1..1..0..0..1. .0..1..0..0..0..0. .0..0..1..0..0..1. .1..0..0..1..0..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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