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A283231
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Number of nX7 0..1 arrays with no 1 equal to more than two of its horizontal and vertical neighbors, with the exception of exactly two elements.
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1
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0, 1376, 338397, 47531178, 5735340380, 628267302565, 64590243667344, 6347644826932771, 603124906010664854, 55820729585827738580, 5058732535887213720189, 450601583645724092513122
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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=2
..1..1..1..1..1..1..1. .1..1..1..1..1..0..1. .1..1..0..1..0..0..0
..0..0..0..1..0..1..0. .0..1..1..0..0..1..0. .1..1..1..1..1..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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