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A303530
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Number of 7Xn 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
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1
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64, 86, 687, 4112, 56046, 965150, 15768709, 258412452, 4730074082, 89182240009, 1607792486756, 28651954738510, 525363767853510, 9705710828046354, 176560700611952149, 3198325214799036047, 58453456076912623357
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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..1..0..1..0. .0..1..0..0..1. .0..1..0..1..0. .0..1..0..0..0
..1..1..0..1..0. .1..0..0..0..0. .0..1..1..0..0. .0..1..0..1..0
..0..1..0..1..0. .0..0..1..0..1. .1..0..1..1..0. .0..1..0..1..0
..0..0..0..1..0. .1..0..0..0..1. .1..0..1..1..0. .0..1..0..0..0
..0..1..0..1..0. .0..0..0..0..0. .1..0..1..1..1. .1..1..0..1..0
..0..1..1..1..0. .1..0..0..0..1. .1..0..1..1..1. .0..1..0..1..1
..0..1..0..0..0. .1..0..1..0..1. .0..1..1..1..0. .0..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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