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A295038
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Number of nX6 0..1 arrays with each 1 horizontally or vertically adjacent to 1 or 2 1s.
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1
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21, 876, 19956, 528282, 13706771, 355281224, 9248214732, 240292442848, 6243986963713, 162252303626409, 4216381439247094, 109570922468132003, 2847344541437365138, 73992200911927723171, 1922796991924326509127
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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=3
..1..0..0..1..0..0. .1..1..0..1..1..1. .0..0..0..1..0..1. .0..0..0..0..0..1
..1..0..0..1..1..0. .1..0..1..0..0..1. .1..1..0..1..0..1. .0..1..0..1..0..1
..1..0..0..0..1..0. .0..0..1..0..0..0. .0..1..0..0..0..0. .1..1..0..1..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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