A206861 Number of nX6 0..2 arrays avoiding the pattern z z+1 z in any row, column, diagonal or antidiagonal.

529, 279841, 61164640, 13093461017, 3092914364659, 729358354663001, 169438223533971179, 39337025494858264742, 9160013752465174862941, 2134232035568356911671588, 496969525342232065594867876

Offset: 1

Author

R. H. Hardin Feb 13 2012

Keywords

• nonn

Comments

Column 6 of A206863

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..60