A206698 Number of nX6 0..2 arrays avoiding the pattern z-2 z-1 z in any row or column.

622, 386884, 192513201, 94853765621, 46260684361347, 22540704363210913, 10977508218092030949, 5345785254841179750528, 2603202653456919727333824, 1267659520116049754553214784, 617300558095977800421783249695

Offset: 1

Author

R. H. Hardin Feb 11 2012

Keywords

• nonn

Comments

Column 6 of A206700

Examples

			Some solutions for n=4
..2..0..2..1..1..1....2..2..2..1..2..1....1..2..1..1..1..1....1..0..2..0..1..0
..1..0..0..1..0..2....0..2..2..0..0..2....0..2..2..1..2..1....0..0..2..1..0..0
..0..0..0..2..0..2....1..0..1..0..0..2....2..2..1..2..1..1....2..0..0..0..2..0
..2..0..1..0..0..0....0..2..2..2..0..2....0..2..1..2..2..2....0..1..1..1..0..1
		

Links

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