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A302970
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Number of 7Xn 0..1 arrays with every element equal to 0, 1, 2, 3 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
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1
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64, 8192, 133757, 3157171, 63612987, 1365216668, 28906043997, 610488691748, 12956909898199, 274201107406761, 5808903569877147, 123055467606278343, 2606329081200670585, 55211783952761651310, 1169521808389101196131
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OFFSET
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1,1
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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..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0
..0..0..1..1..1. .0..0..1..1..0. .0..0..1..1..1. .0..0..1..1..0
..1..0..1..0..0. .1..0..1..0..0. .1..0..1..0..0. .1..0..1..0..1
..0..1..0..1..1. .1..0..1..0..0. .1..0..1..0..1. .1..0..0..1..0
..0..1..0..0..1. .0..0..1..1..0. .0..1..0..1..0. .1..1..0..1..0
..1..1..0..1..1. .0..1..0..0..0. .1..1..0..1..0. .0..1..0..1..0
..1..0..0..1..1. .0..1..1..1..1. .0..1..1..0..1. .1..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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