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A295049
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Number of nX6 0..1 arrays with each 1 horizontally or vertically adjacent to 0 or 2 1s.
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1
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21, 299, 3879, 52199, 700972, 9388654, 125887202, 1687776548, 22627774940, 303374187415, 4067381827553, 54531991863699, 731118983022104, 9802227619735676, 131420017672187029, 1761969037670761907
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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..1..0. .1..0..0..0..1..0. .1..1..0..0..1..0. .1..0..1..0..0..1
..0..1..0..1..0..1. .0..0..0..1..0..0. .1..1..0..1..0..1. .0..0..0..0..1..0
..0..0..1..0..0..0. .0..0..0..0..0..0. .0..0..0..0..1..0. .1..0..0..0..0..0
..0..0..0..0..0..0. .1..0..0..0..1..0. .1..0..0..0..0..0. .0..1..0..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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