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A208495
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Number of n X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 1 0 and 1 1 1 vertically
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1
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2, 16, 60, 324, 1794, 12654, 111328, 1037300, 13597800, 200667632, 3402101520, 81763293780, 1957289927740, 66305181080964, 2590637896086730, 114679284980561840, 7286860676676341916, 454949245195033857996
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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..1....0..1..1..1....1..1..0..1....1..1..1..1....1..0..1..0
..1..0..1..0....1..0..1..0....0..1..1..0....1..0..1..0....1..0..1..1
..0..1..0..0....1..1..0..0....1..0..1..1....0..1..0..0....0..1..0..1
..0..1..1..0....0..1..0..1....1..1..0..1....0..1..1..0....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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