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A301398
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Number of nX6 0..1 arrays with every element equal to 2, 3, 4, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
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1
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0, 19, 156, 2619, 49325, 885003, 16325745, 299552320, 5507220522, 101241811692, 1861266294856, 34219577018840, 629127370642307, 11566583462993881, 212652959829786846, 3909650837047832782, 71879414458502966455
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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..0..1..0..0..0. .0..0..1..1..1..1. .0..0..1..1..0..0. .0..0..1..1..0..0
..0..1..1..0..0..0. .0..0..1..0..1..0. .0..0..1..1..0..0. .0..1..1..0..0..1
..1..1..0..0..0..0. .1..1..0..0..0..0. .0..0..0..0..0..0. .0..1..1..0..1..1
..1..1..1..0..0..1. .1..1..0..1..1..1. .0..1..1..1..0..1. .0..0..0..0..0..0
..1..1..1..1..1..1. .1..0..0..1..1..1. .1..1..1..1..1..1. .0..0..0..0..0..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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