A295037 Number of nX5 0..1 arrays with each 1 horizontally or vertically adjacent to 1 or 2 1s.

12, 280, 3853, 59126, 898493, 13706771, 209181266, 3184995895, 48548926944, 740019106008, 11277857830329, 171883749077632, 2619682437092951, 39926222792932513, 608509663116604097, 9274219880373144746

Offset: 1

Author

R. H. Hardin, Nov 12 2017

Keywords

• nonn

Comments

Column 5 of A295040.

Examples

			Some solutions for n=4
..0..1..1..1..1. .0..0..1..1..0. .0..0..1..1..1. .0..0..1..1..0
..1..1..0..0..0. .1..1..0..1..0. .0..0..0..0..1. .0..0..0..0..1
..1..0..1..1..1. .0..1..0..0..0. .0..1..1..0..0. .0..1..0..0..1
..1..0..1..0..1. .0..1..1..0..0. .0..0..0..0..0. .0..1..0..0..0
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 91

Crossrefs

Cf. A295040.

Formula

Empirical recurrence of order 91 (see link above)