A295528 Number of nX5 0..1 arrays with each 1 horizontally or vertically adjacent to 1, 2 or 4 1s.

12, 280, 4080, 64189, 1012315, 16031147, 253594307, 4003959566, 63279327977, 1000139739583, 15804787030137, 249762291976009, 3947048440634688, 62375786616766976, 985731805754249812, 15577646241372914358

Offset: 1

Author

R. H. Hardin, Nov 23 2017

Keywords

• nonn

Comments

Column 5 of A295531.

Examples

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

Links

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

Crossrefs

Cf. A295531.