A296318 Number of nX6 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1 neighboring 1.

9, 132, 902, 8470, 77426, 676269, 6069953, 54182821, 482859661, 4309680012, 38447587452, 343001529054, 3060175277029, 27301498644398, 243572477909485, 2173052663274029, 19387068214074941, 172963318405155953

Offset: 1

Author

R. H. Hardin, Dec 10 2017

Keywords

• nonn

Comments

Column 6 of A296320.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 85

Crossrefs

Cf. A296320.

Formula

Empirical recurrence of order 85 (see link above)