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A305174
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Number of nX7 0..1 arrays with every element unequal to 2, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.
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1
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0, 702, 2120, 93426, 2416954, 40793823, 1069089450, 24206013485, 531063626743, 12407097768788, 281328842182848, 6388727575554547, 146191463128504367, 3327872095993174915, 75847281259153846487, 1729880848316744980239
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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..0..0..1. .0..1..1..1..0..1..0. .0..1..1..1..1..1..0
..0..1..1..0..1..0..1. .0..1..0..0..1..1..0. .0..1..0..0..1..0..1
..1..0..1..0..0..0..0. .1..1..1..1..1..1..1. .1..1..1..1..1..1..0
..0..1..1..1..1..0..1. .0..1..0..1..0..1..0. .0..1..0..1..1..1..0
..0..1..0..0..1..0..1. .0..1..0..1..0..0..1. .0..1..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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