A189909 Number of 7Xn binary arrays without the pattern 0 0 1 1 diagonally, vertically, antidiagonally or horizontally.

96, 9216, 884736, 36890502, 1518596226, 63149685928, 2662054379066, 111638761715758, 4622530935507966, 190665313953931062, 7834025420282521194, 321059587185451853573

Offset: 1

Author

R. H. Hardin May 01 2011

Keywords

• nonn

Comments

Row 7 of A189905

Examples

			Some solutions for 7X4
..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0
..0..0..0..1....0..0..0..1....0..0..0..1....0..0..0..0....0..0..0..1
..0..0..0..0....1..0..0..0....1..1..0..0....0..1..1..1....1..0..1..1
..0..1..1..1....0..0..0..1....0..0..1..0....0..0..0..0....0..1..0..0
..0..0..0..0....0..0..0..1....0..1..0..0....0..1..1..0....1..0..0..0
..0..1..0..1....0..0..0..1....1..0..1..1....0..1..1..0....0..0..1..0
..1..1..0..0....0..1..1..0....0..1..0..0....1..0..1..1....1..1..0..0