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A283098
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Number of nX6 0..1 arrays with no 1 equal to more than one of its horizontal and vertical neighbors, with the exception of exactly two elements.
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1
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5, 606, 31669, 1237504, 42681282, 1354321470, 40737147156, 1177012522158, 32993790452893, 903014677129570, 24240783265173009, 640399679299433390, 16692234830090081754, 430127734274499659696, 10974448860473249639158
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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..1..1..1..0..0. .0..1..1..0..0..1. .0..1..1..0..0..1. .0..1..0..0..1..0
..0..0..1..0..0..1. .1..0..1..0..0..0. .0..1..0..0..1..1. .1..0..1..0..0..0
..0..1..0..0..1..0. .1..1..0..0..1..0. .1..0..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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