A283040 Number of nX6 0..1 arrays with no 1 equal to more than one of its horizontal and vertical neighbors, with the exception of exactly one element.

12, 924, 30378, 931844, 26180826, 706205768, 18455711930, 471954803540, 11868995624930, 294610925837548, 7236339162353190, 176211017312981820, 4259949495613038410, 102354621908646110164, 2446336908511893682666

Offset: 1

Author

R. H. Hardin, Feb 27 2017

Keywords

• nonn

Comments

Column 6 of A283042.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210

Crossrefs

Cf. A283042.