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A303324
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Number of nX7 0..1 arrays with every element equal to 0, 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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1, 128, 4, 46, 368, 758, 2956, 15494, 44101, 190416, 843033, 3033091, 12413910, 51530654, 201376755, 814350745, 3304173349, 13195116320, 53237817569, 214790465512, 862745046281, 3476740567795, 14008372152609, 56369700131001
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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..1..0..0..0. .0..0..1..1..1..0..0. .0..1..0..1..1..0..0
..1..1..0..1..1..0..1. .0..0..1..1..1..0..0. .1..1..1..1..0..0..1
..1..0..1..0..1..0..1. .0..1..0..1..0..1..0. .0..0..0..0..0..0..0
..1..1..0..1..1..0..1. .0..0..1..1..1..0..0. .1..0..1..0..0..1..1
..1..1..0..1..1..0..1. .0..0..1..1..1..0..0. .0..0..0..0..1..1..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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