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A283385
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Number of nX7 0..1 arrays with no 1 equal to more than two of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements.
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1
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0, 1734, 257416, 20788531, 1644385909, 120672330232, 8473366210380, 577497122717510, 38429377558548084, 2510034447031636894, 161474518006208921112, 10257528561081995711619, 644676948221905320696958
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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..0..1..0..1..1..0. .0..0..1..0..1..1..0. .1..0..1..0..0..0..1
..1..1..1..1..0..1..0. .1..1..1..1..0..1..1. .1..1..1..1..1..0..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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