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A208027
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Number of nX7 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 1 0 1 vertically
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1
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42, 1764, 14946, 118179, 917293, 7184755, 56728924, 445530887, 3494319540, 27469986456, 215862782229, 1695298344579, 13318507574891, 104639074476398, 822013471428905, 6457620629731560, 50731795567376622, 398547965742628997
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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..1..0..1..1..0..1....1..1..0..1..1..0..1....1..0..1..1..0..1..0
..0..1..0..1..1..0..0....0..1..1..0..1..1..1....0..1..1..1..0..1..0
..0..1..1..0..1..1..0....0..1..1..0..1..1..0....0..1..0..1..1..1..1
..1..0..1..0..1..0..1....1..1..0..1..0..1..0....1..1..0..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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