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A299891
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Number of nX6 0..1 arrays with every element equal to 0, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
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1
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1, 389, 2800, 77981, 2025352, 55414033, 1611352289, 46538050960, 1360698390084, 39783278147445, 1164889182356192, 34124055565347097, 999756729105547241, 29294587727359499116, 858400260133154421401, 25153773626184474475671
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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..0..1..1..1. .0..0..1..1..1..0. .0..0..0..1..0..0. .0..0..1..0..0..1
..0..1..1..0..0..1. .1..0..0..1..0..0. .0..0..1..1..0..0. .0..0..1..1..0..0
..0..1..0..1..0..1. .1..1..0..1..0..0. .0..1..1..0..1..1. .1..0..1..1..0..1
..0..0..0..1..1..1. .0..0..1..0..1..0. .0..0..1..0..1..0. .0..0..1..0..0..0
..0..0..0..1..1..1. .0..0..1..1..1..1. .0..0..0..1..0..0. .0..0..1..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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