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A304017
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Number of nX6 0..1 arrays with every element unequal to 1, 2, 3 or 5 king-move adjacent elements, with upper left element zero.
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1
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5, 333, 826, 4449, 20979, 99733, 488944, 2363993, 11464178, 56098491, 273654206, 1336283114, 6536299537, 31957080257, 156295422858, 764631810784, 3740564822969, 18300635921142, 89539797920356, 438096333608801
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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..0..0..1..1..0. .0..0..1..0..1..0. .0..1..1..0..0..1. .0..1..1..1..1..0
..1..0..0..1..1..1. .1..0..0..0..0..0. .1..1..0..1..1..0. .1..0..0..1..0..0
..0..0..0..0..0..1. .0..0..1..0..0..1. .0..0..0..1..0..0. .1..1..0..0..0..0
..0..0..0..0..1..0. .1..1..1..1..0..0. .1..0..0..0..1..1. .1..0..0..0..0..1
..0..1..0..1..1..0. .0..1..1..0..0..1. .1..1..0..0..0..1. .1..0..1..0..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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