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A188844
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Number of n X n binary arrays without the pattern 0 0 1 vertically, antidiagonally or horizontally.
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1
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2, 16, 219, 5711, 262588, 23131221, 3821933610, 1214926248918, 740978404013252, 873971605623906976, 1995026546716994781891, 8837351494869683292347918, 76024359194576916691616836771, 1271387131008663780693344655620080
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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 3 X 3
..1..0..0....1..1..1....1..1..1....1..1..0....1..0..0....0..1..0....0..1..0
..0..1..1....1..1..0....1..0..1....1..1..1....1..1..1....1..1..1....1..1..1
..1..0..0....1..1..0....1..1..0....1..0..0....1..0..0....0..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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