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A304147
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Number of nX6 0..1 arrays with every element unequal to 1, 2, 3 or 6 king-move adjacent elements, with upper left element zero.
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1
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5, 157, 238, 117, 3484, 13152, 12582, 139840, 774023, 1302357, 5969791, 40513904, 104507115, 310823229, 2014755745, 7056836043, 19236900969, 101258778882, 428958694755, 1270322334575, 5406011650360, 24736396849595, 83207851721176
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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..1..0..0..1. .0..1..0..0..1..1. .0..1..0..0..0..1. .0..1..1..1..0..0
..0..1..0..0..0..0. .1..1..0..0..0..1. .1..1..0..0..1..1. .1..0..1..1..1..0
..0..0..0..0..1..0. .0..0..0..0..0..0. .0..0..0..0..0..0. .1..1..0..1..1..1
..1..0..0..1..1..0. .0..0..1..1..1..0. .0..1..0..0..0..0. .1..0..1..1..1..0
..1..1..0..0..0..0. .1..1..0..0..0..1. .0..1..1..0..0..1. .0..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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