A303472 Number of 5Xn 0..1 arrays with every element equal to 0, 1, 2, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

16, 512, 6369, 89371, 1243692, 17247543, 239939422, 3335048493, 46357441983, 644411387300, 8957714227776, 124518113207477, 1730885098566063, 24060449638691425, 334456224185985141, 4649163632178068981

Offset

1,1

Comments

Row 5 of A303469.

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..0..1. .0..0..0..0..0. .0..0..0..0..1
..0..1..1..1..0. .0..1..1..0..0. .0..0..1..1..1. .1..1..1..1..1
..1..0..1..1..0. .1..1..0..0..1. .1..0..1..0..0. .0..0..0..1..0
..1..0..0..0..1. .0..1..0..0..1. .0..0..0..1..1. .1..1..0..1..1
..1..0..1..0..0. .1..1..1..1..1. .0..0..1..0..0. .0..0..1..0..1

Crossrefs

Cf. A303469.

Sequence in context: A302968 A302072 A302811 * A208712 A305520 A316957

Adjacent sequences: A303469 A303470 A303471 * A303473 A303474 A303475

Keyword

nonn

Author

R. H. Hardin, Apr 24 2018

Status

approved