A296325 Number of nX6 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 2 neighboring 1s.

1, 26, 122, 562, 3569, 20088, 112235, 643541, 3666933, 20890748, 119144071, 679253594, 3873420006, 22088544036, 125956423940, 718274061983, 4096006211974, 23357654042928, 133198547653768, 759573589408188

Offset: 1

Author

R. H. Hardin, Dec 10 2017

Keywords

• nonn

Comments

Column 6 of A296327.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 83

Crossrefs

Cf. A296327.

Formula

Empirical recurrence of order 83 (see link above)