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A305508
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Number of nX7 0..1 arrays with every element unequal to 2, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero.
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1
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0, 702, 1722, 60352, 855017, 13419832, 235231504, 3907075261, 64554148567, 1091758542733, 18209061707696, 304661251675492, 5105283737147602, 85412880801246839, 1429775041242612805, 23935941024217852318
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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..0..1..0..1. .0..1..1..0..0..1..0. .0..1..1..1..1..0..1
..0..1..1..0..1..0..1. .0..1..1..0..1..0..1. .0..1..0..0..1..1..0
..1..1..0..1..1..1..0. .0..1..1..1..1..1..1. .1..0..1..1..0..1..1
..0..1..1..0..1..0..1. .1..1..1..0..0..1..0. .0..1..0..1..1..0..0
..0..1..0..1..1..1..0. .0..0..0..1..1..0..1. .0..1..1..0..1..1..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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