A208043 Number of 7Xn 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 0 and 1 0 1 vertically.

28, 784, 5404, 37249, 422477, 4791721, 44918280, 421070400, 4242161160, 42738533289, 418847880189, 4104809717089, 40659110991088, 402738109808896, 3972693497773776, 39187484975640681, 387184769071171113

Offset: 1

Author

R. H. Hardin Feb 22 2012

Keywords

• nonn

Comments

Row 7 of A208039

Examples

			Some solutions for n=4
..0..0..1..1....0..0..1..1....0..0..1..1....1..0..0..1....1..0..0..1
..1..1..0..0....0..1..1..0....1..1..1..1....0..1..1..1....0..1..1..0
..1..1..0..0....1..1..0..0....0..1..1..1....0..0..1..1....0..1..1..0
..1..0..1..1....1..0..0..1....0..0..1..1....1..0..0..1....1..1..0..1
..1..0..0..1....0..0..1..1....1..0..0..1....1..1..0..0....1..0..0..1
..1..1..0..0....0..1..1..1....1..1..0..1....1..1..1..0....0..0..1..1
..1..1..1..0....1..0..0..1....0..1..1..0....1..0..0..1....0..1..1..1
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210