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A207588
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Number of nX7 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 1 1 vertically
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1
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42, 1764, 1728, 8244, 30056, 85536, 263550, 876860, 2830656, 8637716, 26358144, 82906122, 259356680, 797032056, 2446151996, 7564283208, 23414818812, 72062481458, 221435203512, 682319992200, 2103278142776, 6472523087596
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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
..1..0..1..0..1..0..0....1..1..1..1..1..1..0....1..0..1..0..1..1..0
..0..1..0..1..0..1..1....1..0..1..0..1..0..1....1..1..1..1..0..1..0
..1..0..1..0..1..0..1....0..1..0..1..0..1..1....0..1..0..1..1..0..0
..0..1..0..1..0..1..0....0..1..0..1..0..1..0....1..0..1..0..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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