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A296326
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Number of nX7 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 2 neighboring 1s.
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1
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1, 45, 278, 1677, 14691, 112235, 850404, 6660799, 51754039, 401363520, 3119306759, 24239641260, 188341349284, 1463488096858, 11372085577974, 88367785063892, 686667612240495, 5335806199766372, 41462375276685856, 322187049424431729
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OFFSET
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1,2
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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..1..0..0..0..1..1. .0..1..1..0..0..1..1. .0..1..0..0..0..0..0
..1..0..0..0..1..0..1. .0..1..0..0..0..1..0. .1..1..0..0..0..0..0
..0..0..0..0..1..0..1. .0..0..0..0..0..0..0. .0..0..0..1..1..0..0
..0..1..1..0..1..1..0. .1..1..0..0..0..0..1. .0..0..1..0..1..0..1
..0..1..0..0..0..0..0. .1..0..0..0..0..1..1. .0..0..1..1..0..1..1
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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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