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A297875
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Number of n X 7 0..1 arrays with every element equal to 2, 3 or 5 king-move adjacent elements, with upper left element zero.
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1
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0, 34, 6, 185, 579, 3307, 13778, 69160, 325394, 1617897, 7900112, 39099845, 191624353, 944384511, 4643953567, 22870757049, 112585762631, 554562217248, 2730604865872, 13448526185881, 66230043593237, 326180992906896
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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=7
..0..0..0..0..1..0..0. .0..0..0..0..0..1..1. .0..0..0..1..1..1..0
..0..1..1..1..0..1..0. .0..1..1..1..0..0..1. .0..1..1..0..1..0..0
..1..1..0..0..1..1..0. .1..0..0..0..1..0..1. .1..0..0..1..0..1..1
..1..0..1..1..0..1..0. .1..0..1..1..0..1..1. .1..1..0..1..0..1..0
..1..0..1..0..0..1..0. .1..0..1..1..1..0..1. .0..0..0..0..1..0..0
..1..0..0..1..1..0..1. .0..1..0..1..0..1..0. .1..0..0..1..0..0..1
..1..1..0..0..0..1..1. .0..0..1..0..1..0..0. .1..1..0..1..1..1..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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