A183524 Number of nX7 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.

37, 2803, 47685, 1521573, 56562977, 1908431611

Offset: 1

Author

R. H. Hardin Jan 05 2011

Keywords

• nonn

Comments

Column 7 of A183526

Examples

			Some solutions for 3X7
..0..2..1..1..2..1..1....2..0..2..1..0..2..2....2..0..2..1..0..2..0
..1..0..1..1..2..1..0....2..0..1..0..0..0..0....2..0..1..0..0..0..2
..0..2..2..2..2..1..1....0..0..2..1..0..1..1....1..2..1..1..0..0..0