A303081 Number of nX5 0..1 arrays with every element equal to 0, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

1, 72, 258, 1455, 11767, 84474, 615471, 4647197, 35089147, 266582788, 2040291566, 15688494163, 121138647551, 938798080313, 7297261476590, 56863460415074, 444030008288805, 3473279096665275, 27207246337447767, 213372255333189453

Offset

1,2

Comments

Column 5 of A303084.

Links

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

Example

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

Crossrefs

Cf. A303084.

Sequence in context: A073412 A250749 A019507 * A372564 A158488 A165139

Adjacent sequences: A303078 A303079 A303080 * A303082 A303083 A303084

Keyword

nonn

Author

R. H. Hardin, Apr 18 2018

Status

approved