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A283689
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Number of nX6 0..1 arrays with no 1 equal to more than two of its horizontal, diagonal and antidiagonal neighbors.
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1
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64, 1824, 47829, 1392868, 39372084, 1119189256, 31815868749, 904083654190, 25694926726796, 730246763504188, 20753592413744794, 589817414148933249, 16762605646255786265, 476393216356370195357, 13539093722749224067603
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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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FORMULA
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Empirical recurrence of order 83 (see link above)
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EXAMPLE
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Some solutions for n=3
..0..1..0..0..0..0. .1..1..1..0..0..0. .0..0..0..0..0..1. .0..0..0..0..0..0
..1..0..0..0..0..1. .0..0..0..0..0..1. .1..0..1..1..0..0. .1..0..1..0..0..1
..1..0..0..1..0..0. .0..0..1..0..1..1. .0..0..1..1..0..0. .1..0..1..0..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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