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A298220
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Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 4 or 5 king-move adjacent elements, with upper left element zero.
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1
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64, 353, 451, 4767, 30780, 150617, 1261845, 8555774, 57269902, 425814658, 2966495520, 20993370991, 151153645049, 1069021092485, 7615451236569, 54386372056788, 386712508375753, 2755713914705831, 19642030950592575
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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=6
..0..1..0..1..0..1..1. .0..0..1..1..1..1..1. .0..1..0..0..1..1..0
..1..0..1..1..0..1..0. .1..0..1..0..1..1..0. .0..1..1..1..0..0..0
..0..0..1..0..1..1..1. .1..1..1..0..1..0..0. .1..1..0..0..0..1..1
..0..0..1..1..1..0..0. .0..0..0..0..0..0..0. .1..1..0..1..1..0..0
..1..0..0..0..1..0..1. .0..1..0..1..1..1..0. .1..0..0..0..0..0..1
..1..1..0..0..0..0..1. .1..1..0..0..1..1..1. .0..0..0..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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