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A283783
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Number of nX7 0..1 arrays with no 1 equal to more than two of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly two elements.
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1
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0, 2410, 336614, 30330979, 2393467823, 169720104148, 11308125156356, 719819137224851, 44286142978155009, 2653649902754828202, 155676754281056965035, 8975824198199222022171, 510082055072987791045820
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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..0..1..1..0. .1..0..1..0..1..0..1. .1..1..1..0..0..0..0
..1..0..1..1..0..0..0. .1..1..0..1..1..0..0. .0..0..1..1..1..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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