A296402 Number of nX5 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 2 or 3 neighboring 1s.

1, 46, 316, 2868, 35561, 368770, 3939121, 42629909, 457078213, 4916699494, 52878346101, 568417591743, 6111938688947, 65715511636393, 706559717931743, 7596910600110019, 81681361807250151, 878231179494501589

Offset

1,2

Comments

Column 5 of A296405.

Links

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

Example

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

Crossrefs

Cf. A296405.

Sequence in context: A156841 A086979 A289274 * A077734 A272184 A213286

Adjacent sequences: A296399 A296400 A296401 * A296403 A296404 A296405

Keyword

nonn

Author

R. H. Hardin, Dec 11 2017

Status

approved