A207861 Number of 6Xn 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 0 and 1 0 1 vertically.

26, 676, 4238, 26569, 279219, 2934369, 24999522, 212984836, 1971051046, 18240933481, 163271339451, 1461412614321, 13258432080828, 120285003372304, 1085258011417172, 9791619223717321, 88545977352385817, 800724571304629609

Offset: 1

Author

R. H. Hardin Feb 21 2012

Keywords

• nonn

Comments

Row 6 of A207858

Examples

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

Links

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