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A296333
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Number of nX6 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 0 or 2 neighboring 1s.
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1
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21, 286, 2895, 34224, 392230, 4476519, 51335713, 587914968, 6733523523, 77127831438, 883416333583, 10118643744099, 115898953294898, 1327506562669956, 15205261038425905, 174161077313606869
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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
..1..0..0..0..0..0. .1..0..0..1..0..0. .0..0..0..0..0..1. .1..0..0..0..0..0
..0..0..0..1..0..0. .0..1..0..0..0..1. .0..0..0..1..0..0. .0..0..0..1..0..0
..0..0..0..0..0..0. .0..0..0..0..0..0. .0..1..0..0..1..1. .0..0..0..0..1..0
..0..0..1..0..0..1. .0..1..1..0..0..0. .0..0..0..0..1..0. .0..0..0..0..0..0
..1..0..0..0..0..0. .0..1..0..1..0..0. .1..0..1..0..0..1. .1..0..0..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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