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A206995
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Number of n X n 0..1 arrays avoiding 0 1 0 horizontally and 0 1 1 vertically
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0
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2, 16, 230, 6612, 382349, 45723467, 10432265840, 4567604720632, 3835202074248503, 6261201402096526687, 19792947737197868206612, 121328664454799987875557245, 1441630925698363945645049021360
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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..1..0....1..0..0..0....1..0..1..1....1..0..1..1....0..0..1..1
..0..1..1..1....0..1..1..0....1..0..1..1....0..0..0..1....0..1..1..1
..0..1..1..0....1..0..0..1....1..1..0..0....1..0..1..1....0..0..1..1
..1..0..1..1....0..1..1..0....0..0..1..1....0..0..0..1....0..1..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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