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A283947
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Number of nX5 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, 84, 7988, 264482, 8244557, 242330064, 6816984648, 186634970946, 5006741437429, 132235076658212, 3449881843194282, 89112251221774946, 2282954398345404380, 58083724718538740624, 1469105340510703161357
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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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FORMULA
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Empirical recurrence of order 90 (see link above)
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EXAMPLE
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Some solutions for n=3
..0..0..1..0..1. .0..1..1..0..1. .0..1..0..0..1. .1..1..0..0..0
..1..1..0..0..0. .1..1..1..0..1. .0..1..0..1..1. .1..1..0..1..0
..1..0..1..1..1. .1..0..0..1..0. .0..1..1..1..0. .0..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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