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A295550
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Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 1, 3 or 4 1s.
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1
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13, 276, 4374, 78434, 1385901, 24486926, 434357928, 7703929911, 136731507572, 2425791860562, 43046580346073, 763911860239486, 13556371257153923, 240573778392292406, 4269273591050766800, 75763525863454457902
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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..1..1..0..1..0. .0..0..0..0..1..1..0. .0..0..0..0..1..1..0
..0..0..0..0..1..1..1. .0..0..0..0..0..0..0. .0..0..0..0..0..0..0
..0..0..0..1..0..0..0. .0..0..0..0..1..1..0. .0..0..0..1..0..0..1
..0..0..1..1..1..0..0. .0..0..0..0..0..0..1. .0..0..1..1..0..0..1
..0..0..0..1..0..0..0. .0..0..0..0..0..0..1. .0..0..0..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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