A303105 Number of 5Xn 0..1 arrays with every element equal to 1, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

0, 111, 2869, 49534, 1138331, 25372284, 568099880, 12700233541, 284202349097, 6359037680577, 142285824095768, 3183697496083230, 71236519396617958, 1593945862977398560, 35665181412067143397, 798022847623306938661

Offset

1,2

Comments

Row 5 of A303102.

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

Crossrefs

Cf. A303102.

Sequence in context: A075859 A264466 A302384 * A008396 A332950 A302956

Adjacent sequences: A303102 A303103 A303104 * A303106 A303107 A303108

Keyword

nonn

Author

R. H. Hardin, Apr 18 2018

Status

approved