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A298165
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Number of nX6 0..1 arrays with every element equal to 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero.
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1
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0, 5, 5, 11, 18, 62, 133, 749, 2248, 11243, 43303, 213698, 862571, 4209880, 18541760, 85912154, 391299596, 1813446809, 8242953615, 38135967993, 174709622116, 803464643771, 3690832801362, 16981747383158, 77971455891314
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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=8
..0..0..1..1..0..0. .0..0..1..1..0..0. .0..0..0..1..1..1. .0..0..0..1..1..1
..0..0..1..1..0..0. .0..0..1..1..0..0. .0..0..1..0..1..1. .0..0..0..1..1..1
..1..1..1..0..1..1. .0..0..1..1..0..0. .1..1..1..0..0..1. .0..0..0..1..1..1
..1..1..0..0..1..1. .1..1..0..1..0..0. .1..1..0..0..1..1. .0..0..0..1..1..1
..0..0..1..1..0..0. .1..1..0..0..1..1. .0..0..1..1..0..1. .1..1..1..0..0..0
..0..0..0..1..0..0. .1..0..0..1..1..1. .0..0..1..0..0..1. .1..1..0..1..0..0
..1..1..0..0..1..1. .1..1..0..1..0..0. .1..1..0..0..1..1. .0..0..1..0..1..1
..1..1..1..1..1..1. .1..1..1..0..0..0. .1..1..1..1..1..1. .0..0..0..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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