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A316685
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Number of nX7 0..1 arrays with every element unequal to 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
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1
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0, 702, 10487, 570806, 24891152, 1155724711, 53245963290, 2457712512055, 113464874364839, 5239113289126198, 241898389551869436, 11169440128316212241, 515732336978881669820, 23813298292443451483430
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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..0..1..0..1..1..0. .0..0..0..1..1..0..1. .0..0..0..0..1..0..1
..1..1..0..1..0..1..0. .1..1..1..1..0..1..0. .1..1..0..1..0..0..0
..0..0..1..0..1..0..0. .0..0..1..0..0..0..1. .0..0..0..1..1..1..1
..0..1..1..0..1..0..1. .0..1..0..0..0..0..1. .0..1..1..0..0..1..1
..0..1..0..0..1..1..0. .0..1..1..0..1..1..0. .0..1..1..0..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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