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A302319
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Number of nX5 0..1 arrays with every element equal to 0, 1, 2 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
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1
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16, 136, 519, 3559, 20686, 110035, 659949, 3834162, 21619209, 125759301, 728487588, 4178486509, 24137288153, 139551131994, 804265070921, 4640730688697, 26804969538102, 154673453289555, 892538049899287
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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..0..0. .0..1..1..1..1. .0..0..0..1..1. .0..0..1..1..1
..0..0..1..0..0. .0..0..1..0..1. .0..1..0..0..0. .0..0..1..0..1
..1..0..1..1..1. .0..0..0..0..0. .0..1..1..1..0. .0..1..0..0..1
..1..1..0..0..1. .0..1..1..1..1. .0..0..0..1..0. .1..1..0..0..1
..1..1..0..1..1. .0..1..1..1..1. .1..1..0..1..1. .0..0..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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