A295210 Number of nX5 0..1 arrays with each 1 horizontally or vertically adjacent to 2 or 3 1s.

1, 14, 102, 916, 9536, 85215, 775547, 7213161, 66719868, 617206899, 5712427735, 52846385777, 488921918232, 4523682017995, 41853575267115, 387232937869441, 3582725192257390, 33147778088300382, 306687046141834012

Offset: 1

Author

R. H. Hardin, Nov 17 2017

Keywords

• nonn

Comments

Column 5 of A295213.

Examples

			Some solutions for n=6
..1..1..0..0..0. .1..1..1..1..1. .0..1..1..1..1. .1..1..1..1..1
..1..1..0..0..0. .1..1..0..1..1. .0..1..0..0..1. .1..0..0..1..1
..1..0..1..1..1. .1..0..0..1..1. .0..1..1..1..1. .1..1..1..1..0
..1..1..1..0..1. .1..0..0..1..1. .0..1..0..0..0. .1..0..1..1..0
..0..0..1..1..1. .1..1..0..1..0. .0..1..1..1..0. .1..1..0..0..0
..0..0..1..1..1. .1..1..1..1..0. .0..1..1..1..0. .1..1..0..0..0
		

Links

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

Crossrefs

Cf. A295213.

Formula

Empirical recurrence of order 78 (see link above)