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A295530
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Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 1, 2 or 4 1s.
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1
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37, 2735, 113466, 5400933, 253594307, 11938414614, 563330031268, 26515589323171, 1248681784524804, 58814998591494213, 2770085782332161201, 130464623191695045459, 6144598685123051237293, 289398247960170761817752
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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..1..1. .0..0..0..1..0..1..1. .0..0..0..1..0..1..1
..0..0..0..0..0..0..0. .0..0..0..1..0..0..0. .0..0..0..1..1..1..1
..0..0..0..0..0..0..1. .0..0..0..0..0..1..0. .0..0..0..0..0..1..0
..0..0..0..1..0..0..1. .0..0..0..0..0..1..1. .0..0..0..1..1..0..0
..0..0..1..1..0..1..1. .0..0..0..0..0..0..1. .0..0..1..1..0..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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