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A207711
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Number of n X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 0 0 vertically
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1
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2, 16, 114, 2205, 97580, 10150118, 2433018665, 1332236625328, 1658417176295910, 4680320299339768945, 29900757895299392674248, 432064042048194196301219286, 14114419978195735103237247653751, 1042092211595049585701702108677740928
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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..1..0....1..0..1..0....0..1..1..0....0..1..0..1
..1..1..0..1....1..0..1..0....0..1..0..0....1..1..0..0....1..1..1..0
..0..1..1..1....1..0..1..0....1..1..1..0....1..1..1..0....0..1..0..1
..1..1..1..1....1..0..1..0....0..1..1..0....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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