A302313 Number of 5Xn 0..1 arrays with every element equal to 0, 1, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

16, 21, 58, 153, 445, 1595, 4772, 15249, 49634, 166329, 547264, 1812790, 6026255, 20329381, 68337634, 228989976, 768581607, 2595937574, 8761489896, 29487968631, 99305798186, 335393857959, 1132559861889, 3818247323820, 12874857356305

Offset

1,1

Comments

Row 5 of A302309.

Links

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

Example

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

Crossrefs

Cf. A302309.

Sequence in context: A302638 A302430 A138173 * A303200 A303043 A302880

Adjacent sequences: A302310 A302311 A302312 * A302314 A302315 A302316

Keyword

nonn

Author

R. H. Hardin, Apr 05 2018

Status

approved