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A232064
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Number of nX7 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or vertically, with no adjacent values equal
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1
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26, 322, 3722, 38870, 457234, 4990482, 59448262, 653375842, 7789998594, 85859588738, 1022554161202, 11291242022918, 134275256384066, 1485073515174330, 17633927192912362, 195323094382344414
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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=4
..0..1..2..1..2..1..0....1..2..1..0..2..0..2....1..2..1..2..1..2..1
..1..0..1..0..1..2..1....0..1..2..1..0..1..0....2..1..0..1..0..1..0
..2..1..0..1..2..1..0....1..0..1..0..1..2..1....1..2..1..0..1..2..1
..1..0..2..0..1..2..1....2..1..0..2..0..1..0....2..1..2..1..2..1..2
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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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