A297652 Number of nX6 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1, 2 or 3 neighboring 1s.

21, 1845, 45036, 1580681, 56630842, 1906300826, 65775301075, 2265577299182, 77814433907002, 2676719924368494, 92051980153163166, 3165307212249071372, 108852027486036181894, 3743236634629271063055, 128723199495612208662339

Offset

1,1

Comments

Column 6 of A297654.

Links

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

Example

Some solutions for n=3
..1..1..0..0..0..0. .1..1..0..0..1..0. .1..1..1..0..1..0. .0..1..0..1..0..0
..1..0..1..0..1..1. .1..1..0..1..1..0. .0..1..0..0..1..1. .1..0..1..0..0..0
..0..1..1..1..0..1. .1..0..0..0..1..1. .0..0..1..0..0..1. .0..0..1..1..1..0

Crossrefs

Cf. A297654.

Sequence in context: A296597 A203327 A375065 * A243664 A232949 A305145

Adjacent sequences: A297649 A297650 A297651 * A297653 A297654 A297655

Keyword

nonn

Author

R. H. Hardin, Jan 02 2018

Status

approved