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A303408
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Number of nX6 0..1 arrays with every element equal to 1, 2, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
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1
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5, 45, 290, 2079, 29411, 236326, 2158662, 27002794, 250400003, 2506366395, 27764556264, 275534182736, 2826711225139, 29909224594535, 304574137026271, 3144849018260079, 32756776290370113, 336779681669267253
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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..1..0. .0..0..0..1..1..1. .0..0..1..0..1..1. .0..0..0..0..0..0
..0..0..1..1..0..0. .0..0..0..1..1..1. .1..1..1..0..0..1. .0..1..0..1..0..1
..1..1..1..1..1..0. .0..1..0..1..0..0. .1..0..1..0..0..0. .0..1..1..1..1..1
..0..0..1..1..0..1. .0..1..1..1..0..1. .0..0..1..1..1..0. .0..0..1..1..1..0
..1..1..0..1..1..1. .1..0..0..1..1..1. .1..1..0..0..1..1. .0..1..0..0..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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