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A316517
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Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 3, 7 or 8 king-move adjacent elements, with upper left element zero.
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1
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64, 719, 1002, 4894, 48677, 432088, 3646656, 32938897, 290133839, 2562456375, 22728069640, 201003310339, 1779143777742, 15749640647849, 139387918052540, 1233758985418234, 10920131413523623, 96653911737990883, 855492234969744992
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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..0..0..0..0..0..1. .0..0..0..0..0..0..0. .0..1..1..1..1..1..0
..0..0..0..0..0..0..0. .0..1..1..0..0..0..0. .1..0..1..1..1..1..1
..0..0..0..0..0..0..0. .0..0..0..0..1..0..0. .1..1..1..0..1..1..1
..0..0..1..1..0..0..0. .0..0..0..1..0..0..0. .1..0..1..1..0..1..1
..1..0..0..0..0..0..0. .0..0..0..0..0..0..1. .0..1..1..1..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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