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A283949
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Number of nX7 0..1 arrays with no 1 equal to more than three of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element.
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1
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0, 1926, 575456, 64614384, 6763514843, 667015216686, 62944601744067, 5782000278310300, 520411514987541560, 46113717734650843082, 4036254767838742279228, 349783657626468531519474
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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
..0..1..0..0..1..1..1. .0..0..0..0..1..1..1. .0..1..1..1..1..1..1
..0..0..1..1..1..0..1. .0..0..0..0..1..0..1. .0..1..0..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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