A183525 Number of nX8 0..2 arrays with each element equal to either the sum mod 3 of its horizontal and vertical neighbors or the sum mod 3 of its diagonal and antidiagonal neighbors.

63, 8673, 215451, 11678037, 728459961

Offset: 1

Author

R. H. Hardin Jan 05 2011

Keywords

• nonn

Comments

Column 8 of A183526

Examples

			Some solutions for 3X8
..0..2..2..2..1..0..0..1....0..1..1..1..0..1..1..0....0..0..0..1..0..0..1..0
..1..0..1..2..2..1..1..2....2..1..2..0..1..2..0..0....2..0..2..1..1..2..0..2
..0..2..0..0..2..0..1..0....0..1..0..0..2..0..2..2....1..2..1..2..0..1..0..2