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A305087
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Number of nX6 0..1 arrays with every element unequal to 1, 2, 3, 6 or 7 king-move adjacent elements, with upper left element zero.
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1
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5, 157, 438, 372, 15814, 101803, 285422, 3531950, 30133609, 154643412, 1197607542, 9877914471, 64506159901, 457810704440, 3502599638234, 24766267017652, 175596992174688, 1292154109782819, 9320946559486284, 66689569914020973
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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..0..0..0..0. .0..1..0..1..1..0. .0..1..1..1..1..0. .0..1..1..1..0..0
..1..0..1..1..1..1. .1..1..0..0..1..0. .1..1..0..1..1..1. .1..1..1..0..1..1
..1..1..1..1..1..1. .0..0..0..0..0..0. .1..0..1..1..1..1. .1..1..1..1..1..1
..1..1..1..1..0..1. .0..0..0..0..1..0. .0..1..1..1..0..1. .1..0..0..1..0..1
..0..0..0..0..1..0. .1..1..1..1..0..1. .0..1..1..0..0..1. .1..1..1..1..0..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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