A189904 Number of nX8 binary arrays without the pattern 0 0 1 1 diagonally, vertically, antidiagonally or horizontally.

177, 31329, 5545233, 395408137, 30880712109, 1951128590287, 111638761715758, 6207537762978575, 323783296887093516, 16672434688261743849, 837559653906404095478, 41615651706032541197843

Offset: 1

Author

R. H. Hardin May 01 2011

Keywords

• nonn

Comments

Column 8 of A189905

Examples

			Some solutions for 4X8
..0..0..0..0..1..0..1..1....0..0..0..0..1..0..1..1....0..0..0..0..0..0..1..0
..0..0..0..1..0..0..1..0....0..0..0..0..1..0..0..1....0..0..0..0..0..1..0..0
..0..0..0..0..0..1..0..1....0..0..0..0..1..0..1..0....0..0..0..0..1..0..0..0
..0..0..1..0..1..0..0..1....0..1..0..1..1..0..0..0....0..0..0..1..0..0..0..0