A207806 Number of nX6 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 1 0 and 1 0 1 vertically.

26, 676, 4374, 43990, 382288, 3511534, 31569510, 285774964, 2580956950, 23333448086, 210885788448, 1906172464566, 17228491782138, 155715573550500, 1407388340653890, 12720361717357138, 114970670286577872

Offset: 1

Author

R. H. Hardin Feb 20 2012

Keywords

• nonn

Comments

Column 6 of A207808

Examples

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

Links

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