A241118 Number of n X 6 0..3 arrays with no element equal to exactly three horizontal or vertical neighbors, with new values 0..3 introduced in row major order.

187, 622645, 2085879115, 7012241396116, 23571710809729613, 79236581561126536192, 266354689978495657505773, 895354388889821272809074322, 3009744193584209519705208003912

Offset: 1

Author

R. H. Hardin, Apr 16 2014

Keywords

• nonn

Comments

Column 6 of A241119.

Examples

			Some solutions for n=2
..0..0..1..1..2..2....0..0..0..1..1..0....0..0..1..0..0..2....0..0..0..1..0..0
..1..3..3..2..1..0....0..2..2..1..0..0....2..0..2..2..3..2....0..2..0..0..0..3
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..20

Crossrefs

Cf. A241119.