A295118 Number of nX6 0..1 arrays with each 1 horizontally or vertically adjacent to 1 or 4 1s.

9, 85, 665, 5793, 49302, 420519, 3590821, 30650456, 261518933, 2232138695, 19050970320, 162588578831, 1387635803762, 11842933188678, 101074697830670, 862633152321378, 7362232721371648, 62833751476788374, 536261351701937815

Offset: 1

Author

R. H. Hardin, Nov 15 2017

Keywords

• nonn

Comments

Column 6 of A295120.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 78

Crossrefs

Cf. A295120.

Formula

Empirical recurrence of order 78 (see link above)