A303408 Number of nX6 0..1 arrays with every element equal to 1, 2, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

5, 45, 290, 2079, 29411, 236326, 2158662, 27002794, 250400003, 2506366395, 27764556264, 275534182736, 2826711225139, 29909224594535, 304574137026271, 3144849018260079, 32756776290370113, 336779681669267253

Offset: 1

Author

R. H. Hardin, Apr 23 2018

Keywords

• nonn

Comments

Column 6 of A303410.

Examples

			Some solutions for n=5
..0..1..1..0..1..0. .0..0..0..1..1..1. .0..0..1..0..1..1. .0..0..0..0..0..0
..0..0..1..1..0..0. .0..0..0..1..1..1. .1..1..1..0..0..1. .0..1..0..1..0..1
..1..1..1..1..1..0. .0..1..0..1..0..0. .1..0..1..0..0..0. .0..1..1..1..1..1
..0..0..1..1..0..1. .0..1..1..1..0..1. .0..0..1..1..1..0. .0..0..1..1..1..0
..1..1..0..1..1..1. .1..0..0..1..1..1. .1..1..0..0..1..1. .0..1..0..0..0..1
		

Links

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

Crossrefs

Cf. A303410.