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A295604
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Number of nX6 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 2, 3 or 4 1s.
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1
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21, 341, 6080, 119371, 2594128, 59562253, 1412108105, 34084604345, 830405539405, 20326927577606, 498763140162314, 12252986488956085, 301198823186866962, 7406227684806017087, 182140859562873643474, 4479722433974259527069
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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=4
..0..0..0..0..0..1. .1..0..0..0..1..0. .0..0..0..1..0..0. .0..1..0..0..0..0
..1..0..0..0..0..0. .0..0..0..0..0..0. .1..1..0..0..0..0. .1..0..0..0..0..0
..0..0..0..0..0..1. .1..0..1..0..1..1. .1..1..1..0..0..0. .0..0..1..1..1..0
..0..1..0..0..0..0. .0..1..0..0..1..1. .0..1..1..0..0..0. .0..0..1..1..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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