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A298658
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Number of nX6 0..1 arrays with every element equal to 1, 2, 4, 6 or 7 king-move adjacent elements, with upper left element zero.
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1
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5, 49, 34, 173, 431, 1116, 2562, 6711, 17405, 48462, 125671, 334571, 901387, 2398458, 6398293, 17158639, 45911441, 122885609, 329214517, 881849126, 2361859125, 6328533398, 16955926709, 45429854362, 121730159805, 326179436515
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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..1..1. .0..1..0..1..1..0. .0..1..1..1..1..0. .0..1..0..0..1..0
..1..0..0..0..0..0. .1..0..1..0..0..1. .0..0..1..1..0..0. .1..0..1..1..1..0
..0..0..0..1..0..1. .1..0..0..0..1..0. .0..0..1..1..1..1. .0..0..1..1..1..0
..0..0..0..1..1..0. .1..0..0..0..0..1. .1..0..1..0..1..0. .0..0..1..0..1..0
..0..1..1..0..1..0. .1..0..1..1..1..0. .1..0..0..0..1..0. .0..1..1..0..1..1
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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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