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A189900
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Number of nX4 binary arrays without the pattern 0 0 1 1 diagonally, vertically, antidiagonally or horizontally
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1
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15, 225, 3375, 35656, 377517, 3810503, 36890502, 354894796, 3368920072, 31765314572, 298643477857, 2799075682549, 26196661596588, 244952250115880, 2288817676141909, 21378736239048787, 199638668209430098
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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 5X4
..0..0..0..0....0..1..0..0....0..0..0..1....0..0..0..1....0..1..0..0
..0..0..0..0....1..0..1..1....1..1..1..1....0..0..0..0....1..1..1..0
..0..0..0..0....0..1..0..0....1..1..0..1....0..0..0..1....0..1..1..0
..1..1..0..0....0..1..0..1....1..1..0..1....0..0..0..1....0..0..1..0
..0..0..0..0....1..1..0..1....0..1..0..1....1..1..0..1....1..0..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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