A183479 Number of nX5 0..2 arrays with every element equal to either the sum mod 3 of its vertical neighbors or the sum mod 3 of its horizontal neighbors.

13, 495, 2925, 40073, 706473, 7773025, 107741253, 1577932971, 20728674493, 287526589977, 4036331530635, 55313628172919, 767230355186961, 10669808831015745, 147604547979187367, 2047336009619708185

Offset: 1

Author

R. H. Hardin Jan 05 2011

Keywords

• nonn

Comments

Column 5 of A183483

Examples

			Some solutions for 4X5
..1..1..0..1..1....1..0..0..0..0....1..1..0..0..0....2..2..0..1..1
..0..0..0..0..0....1..0..0..2..2....2..0..0..0..2....0..0..0..0..0
..0..2..1..0..1....0..0..0..0..0....1..2..0..0..2....1..2..2..2..0
..0..2..1..0..1....0..0..2..2..0....2..2..0..0..0....1..2..2..2..0
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..131