A300377 Number of nX5 0..1 arrays with every element equal to 0, 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

1, 13, 8, 80, 389, 1351, 6577, 29663, 128834, 599170, 2699986, 12281509, 55927064, 254229616, 1157066602, 5264547159, 23955687707, 109010980492, 496054309841, 2257324649817, 10272085855116, 46743877888337, 212711266268337

Offset

1,2

Comments

Column 5 of A300380.

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

Crossrefs

Cf. A300380.

Sequence in context: A206610 A250031 A301825 * A300679 A304137 A305043

Adjacent sequences: A300374 A300375 A300376 * A300378 A300379 A300380

Keyword

nonn

Author

R. H. Hardin, Mar 04 2018

Status

approved