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A189257
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Number of n X n binary arrays without the pattern 0 0 1 diagonally, antidiagonally or horizontally
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1
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2, 16, 280, 8900, 552752, 68635317, 17747766886, 9421503162646, 10606582683139102, 24593238398265693575, 121227430181311808878846, 1234571538047080619811567488, 26705899629138438568650919545084
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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 3X3
..0..1..1....1..0..1....1..1..0....1..1..0....1..1..0....1..1..1....0..1..1
..1..1..0....1..0..1....1..0..1....0..0..0....0..1..1....0..0..0....0..1..1
..1..1..1....0..1..0....0..1..1....0..0..0....1..0..0....1..1..0....1..1..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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