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A299726
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Number of nX6 0..1 arrays with every element equal to 1, 2, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.
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1
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5, 888, 57471, 3224826, 187530622, 10997877289, 643936117646, 37689687396652, 2206115442912763, 129134101563691655, 7558797325722443313, 442449939051405174000, 25898559689319783327605, 1515957754232756448009590
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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 92 (see link above)
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EXAMPLE
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Some solutions for n=5
..0..0..1..1..1..1. .0..0..0..1..0..1. .0..0..1..0..0..0. .0..0..0..1..0..1
..0..0..1..0..0..1. .0..0..1..0..1..1. .0..0..0..1..1..0. .0..0..1..0..0..1
..0..0..0..1..1..0. .0..0..0..1..0..0. .0..0..0..0..1..0. .0..0..0..1..0..1
..0..0..0..1..0..1. .0..0..1..0..0..1. .0..0..1..0..0..1. .0..0..0..1..1..1
..0..0..1..1..1..1. .0..0..1..1..0..1. .0..0..0..1..0..1. .0..0..1..0..0..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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