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A316120
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Number of nX5 0..1 arrays with every element unequal to 0, 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero.
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1
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1, 26, 47, 213, 1109, 5426, 26626, 133245, 708063, 3653857, 18764147, 97933770, 509275871, 2641581998, 13734083323, 71435032340, 371258276206, 1929981180495, 10035489710904, 52173575660786, 271248632206329, 1410301795143440
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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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EXAMPLE
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Some solutions for n=5
..0..1..1..0..0. .0..1..1..0..0. .0..1..1..1..1. .0..1..0..0..1
..1..0..1..0..0. .1..0..1..0..0. .1..0..1..0..0. .1..1..0..1..0
..1..1..0..0..0. .1..1..0..0..0. .0..1..1..1..0. .0..0..0..0..0
..1..0..1..0..0. .0..0..0..1..1. .1..0..1..1..1. .0..0..0..1..0
..0..1..0..1..1. .0..0..0..1..0. .1..0..0..1..0. .1..1..1..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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