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A300137
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Number of nX7 0..1 arrays with every element equal to 0, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
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1
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1, 22, 673, 3273, 80126, 1118800, 20405641, 375468115, 6965745267, 133609996968, 2564144922717, 49584317553511, 961358616451397, 18667709860965983, 362920266075365594, 7059147752281679470, 137357501865894599487
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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..0..0..1..1. .0..0..1..0..0..0..0. .0..1..0..1..1..1..0
..0..0..0..0..0..1..1. .0..0..0..0..0..0..0. .1..1..1..1..1..1..1
..1..1..0..0..0..1..0. .1..0..0..0..0..0..0. .1..1..0..1..1..1..1
..1..1..1..1..1..1..1. .0..0..0..0..0..0..0. .1..1..1..1..1..1..1
..0..1..0..1..0..1..1. .0..0..0..1..0..0..1. .1..1..1..1..0..1..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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