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A304845
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Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 4 or 7 king-move adjacent elements, with upper left element zero.
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1
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16, 64, 165, 502, 3009, 12763, 45988, 205950, 912997, 3690448, 15499328, 66956934, 281234615, 1178657330, 5007791845, 21188234139, 89234391013, 377182176376, 1595475905110, 6735810178562, 28448566412437, 120239913645632
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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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EXAMPLE
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Some solutions for n=5
..0..1..1..1..1. .0..0..1..0..0. .0..0..1..1..1. .0..0..1..1..0
..1..0..1..1..1. .0..1..0..0..0. .1..1..1..1..0. .1..1..1..1..0
..1..1..1..1..1. .0..0..0..0..1. .1..1..1..1..0. .1..1..1..1..1
..0..1..1..1..1. .1..0..0..0..1. .1..0..1..1..1. .0..1..1..1..0
..0..1..1..0..0. .0..1..0..0..0. .1..0..1..1..1. .1..0..1..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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