A295094 Number of nX5 0..1 arrays with each 1 horizontally or vertically adjacent to 1 or 3 1s.

6, 55, 377, 2859, 21185, 158361, 1182050, 8806229, 65681168, 489881002, 3653247015, 27243826263, 203174609491, 1515201570870, 11299733962485, 84268754243729, 628442480251730, 4686669295204890, 34951271585401256

Offset

1,1

Comments

Column 5 of A295097.

Links

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

Example

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

Crossrefs

Cf. A295097.

Sequence in context: A281075 A009577 A097300 * A295548 A198855 A318592

Adjacent sequences: A295091 A295092 A295093 * A295095 A295096 A295097

Keyword

nonn

Author

R. H. Hardin, Nov 14 2017

Status

approved