A303256 Number of 5Xn 0..1 arrays with every element equal to 1, 2, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

0, 111, 1183, 8664, 106803, 1218385, 13529019, 153269484, 1719616546, 19364602930, 218131990331, 2454766315292, 27636145270965, 311127611619222, 3502509703999865, 39430191355003478, 443891694271539222

Offset

1,2

Comments

Row 5 of A303254.

Links

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

Example

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

Crossrefs

Cf. A303254.

Sequence in context: A199979 A102782 A302475 * A137465 A101152 A250145

Adjacent sequences: A303253 A303254 A303255 * A303257 A303258 A303259

Keyword

nonn

Author

R. H. Hardin, Apr 20 2018

Status

approved