A207889 Number of 7Xn 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 1 1 and 1 1 0 vertically.

35, 1225, 2233, 14825, 49586, 119278, 618202, 2332602, 6535778, 28238814, 110355600, 342679500, 1341016198, 5237625812, 17405443410, 64898151922, 250040973048, 867290958802, 3166736891794, 12011520072686, 42745544469774

Offset: 1

Author

R. H. Hardin Feb 21 2012

Keywords

• nonn

Comments

Row 7 of A207885

Examples

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

Links

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