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A299319
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Number of nX6 0..1 arrays with every element equal to 0, 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, 9, 146, 284, 6051, 44381, 473924, 4898412, 51303757, 560144415, 6042198393, 65973666490, 720410978977, 7878701955428, 86252362060965, 944390263513343, 10344434170986780, 113317722430202816, 1241460522814886751
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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..1..1..1. .0..1..1..0..0..1. .0..0..0..1..0..0. .0..0..0..0..0..1
..0..0..1..1..1..1. .1..1..1..0..0..0. .0..0..0..0..0..0. .0..0..0..1..0..0
..0..0..1..1..0..1. .1..0..1..0..0..1. .0..0..1..0..1..1. .1..0..0..0..0..0
..0..0..0..1..1..1. .1..1..1..0..0..0. .1..1..1..1..1..1. .0..0..0..1..0..0
..0..0..0..1..1..1. .1..1..1..0..0..0. .1..1..1..0..1..1. .0..0..0..0..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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