A206992 Number of nX6 0..1 arrays avoiding 0 0 0 horizontally and 1 1 1 vertically.

44, 1936, 17460, 329952, 5517786, 88819714, 1482397764, 24487141408, 404028674322, 6680807680870, 110384929625108, 1823827049092968, 30138255315895530, 497995973048057786, 8228770269287650676

Offset: 1

Author

R. H. Hardin Feb 14 2012

Keywords

• nonn

Comments

Column 6 of A206994

Examples

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

Links

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