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A316875
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Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero.
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1
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64, 1709, 36900, 871345, 19933839, 486546897, 11836970493, 286716424150, 6977675255288, 170015938697302, 4138167646465313, 100724821265896610, 2452502487475584970, 59712288213161682740, 1453740520399913939989
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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..1..1..0. .0..0..1..0..0..1..1. .0..0..0..0..0..0..0
..0..0..0..0..1..0..1. .0..0..0..0..1..1..1. .0..0..0..0..1..1..0
..0..0..0..0..1..0..1. .0..0..0..0..1..0..1. .0..0..0..0..0..1..1
..0..0..0..0..1..1..1. .0..0..0..0..1..0..1. .0..0..0..0..0..0..0
..0..0..0..0..1..0..1. .0..0..0..0..1..1..1. .0..0..0..0..0..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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