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A317700
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Number of nX5 0..1 arrays with every element unequal to 0, 2, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
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1
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1, 82, 851, 20235, 468002, 11013057, 261020405, 6206695998, 147728990014, 3517979870158, 83793302100665, 1995995263130736, 47547157897887346, 1132650102102214367, 26981709208286690846, 642753107156924487864
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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 87 (see link above)
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EXAMPLE
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Some solutions for n=5
..0..0..0..0..1. .0..0..0..0..1. .0..1..0..1..0. .0..1..0..1..0
..1..1..1..0..0. .1..1..1..0..1. .0..1..0..0..1. .1..0..0..1..0
..0..1..1..1..0. .0..0..0..0..1. .0..1..0..1..0. .1..1..0..0..0
..1..0..0..1..0. .1..0..1..1..0. .0..1..0..0..1. .0..1..1..1..1
..1..0..1..0..1. .0..1..0..1..0. .0..1..0..0..1. .0..1..0..1..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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