A300470 Number of nX6 0..1 arrays with every element equal to 0, 1, 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

32, 1490, 31106, 759100, 18735889, 462538206, 11408562672, 281433652906, 6942908646999, 171280218101813, 4225436849045491, 104240370076371736, 2571581648449512936, 63440223592452588279, 1565053148367633815372

Offset

1,1

Comments

Column 6 of A300472.

Links

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

Example

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

Crossrefs

Cf. A300472.

Sequence in context: A303467 A240345 A358157 * A326103 A300809 A301448

Adjacent sequences: A300467 A300468 A300469 * A300471 A300472 A300473

Keyword

nonn

Author

R. H. Hardin, Mar 06 2018

Status

approved