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A320363
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Number of nX7 0..1 arrays with every element unequal to 2, 3, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
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1
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0, 45, 1111, 32371, 1076811, 33825987, 1076542482, 34268936133, 1089237599640, 34629240586282, 1101078486409810, 35008543878056364, 1113085385544576174, 35390280162099120910, 1125225503711958393640, 35776275240752167917918
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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..0..1..1..0..1. .0..1..0..1..1..1..0. .0..1..0..1..0..1..0
..1..0..0..1..0..0..1. .1..0..0..0..0..0..1. .1..1..1..0..1..1..0
..0..0..0..0..1..1..0. .0..0..1..1..1..0..0. .0..1..0..1..1..1..1
..1..1..1..1..1..1..0. .1..0..1..1..1..0..1. .0..1..0..0..0..0..1
..0..0..1..0..0..0..1. .0..1..0..0..0..1..0. .0..1..0..1..0..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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