A188857 Number of 8Xn binary arrays without the pattern 0 0 1 vertically, antidiagonally or horizontally.
88, 7744, 232747, 5521489, 126202999, 2738402462, 58235424734, 1214926248918, 25100438265744, 514424354650754, 10492086978634132, 213204024180815365, 4321983823146750790, 87458958402751906622, 1767678713324762893245
Offset: 1
Keywords
Examples
Some solutions for 8X3 ..0..0..0....0..0..0....0..1..1....1..0..0....0..0..0....0..1..0....0..1..0 ..1..1..1....1..1..1....1..1..0....1..1..1....1..1..1....1..1..1....1..1..1 ..1..0..1....1..1..1....0..1..1....0..0..0....0..1..1....1..1..1....1..1..1 ..0..1..1....1..0..0....1..0..0....1..1..1....1..1..0....1..1..1....1..1..1 ..1..1..1....1..1..0....0..1..1....0..1..1....0..1..1....1..1..1....1..1..1 ..1..1..0....1..1..0....1..0..0....1..1..0....1..1..0....0..1..0....1..0..1 ..0..1..0....0..0..0....0..1..1....1..1..0....0..1..1....0..1..1....0..1..0 ..1..0..0....0..0..0....0..1..0....1..1..0....0..1..0....0..0..0....1..1..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..200
Comments