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A283491
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Number of nX5 0..1 arrays with no 1 equal to more than three of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element.
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1
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0, 64, 5444, 174232, 5691512, 173139952, 5074155320, 145077026768, 4069261870596, 112485250259704, 3073424415348520, 83183242000043764, 2233748055467946708, 59587068467857424788, 1580547096897194487156
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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 74 (see link above)
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EXAMPLE
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Some solutions for n=4
..1..1..0..0..0. .1..0..1..0..0. .1..1..0..1..0. .1..1..0..0..1
..0..0..0..1..1. .1..0..0..0..0. .0..0..0..1..0. .1..0..1..1..1
..1..1..1..0..1. .0..0..0..1..1. .1..1..1..0..0. .1..0..0..1..0
..0..1..1..1..1. .1..1..1..1..1. .1..1..0..1..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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