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A304139
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Number of nX6 0..1 arrays with every element unequal to 0, 2, 3 or 6 king-move adjacent elements, with upper left element zero.
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1
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1, 49, 16, 17, 83, 39, 34, 749, 257, 102, 8887, 2522, 603, 104361, 35729, 8663, 1216402, 616854, 186354, 14154101, 10863678, 4279443, 165279952, 184917504, 96964504, 1956483921, 3045215141, 2158260140, 23979343195, 49531610793, 48022478670
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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..1..0..0..1..0. .0..0..1..1..0..0. .0..1..1..0..0..1. .0..1..1..0..0..1
..1..1..0..1..1..0. .0..0..1..1..0..0. .1..0..1..1..0..1. .0..1..1..0..0..1
..0..0..0..0..0..0. .0..0..1..1..0..0. .1..0..1..1..1..1. .0..1..1..0..0..1
..0..1..0..0..1..0. .0..0..1..1..0..0. .1..0..1..1..0..1. .0..1..1..0..0..1
..1..0..1..1..0..1. .0..0..1..1..0..0. .0..1..1..0..0..1. .0..1..1..0..0..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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