A204944 Number of (n+2)X6 0..2 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally exactly one way, and new values 0..2 introduced in row major order

2341863, 135480703, 8198499322, 391330634142, 22275992948325, 1354859763939632, 72216110388218781, 4068847858130665436, 239403924912113700571, 13260676640078728030896, 746197476785002732611466

Offset

1,1

Comments

Column 4 of A204945

Links

Table of n, a(n) for n=1..11.

Example

Some solutions for n=3
..0..0..1..0..1..1....0..1..0..0..2..0....0..0..1..0..2..1....0..1..2..2..2..0
..2..2..2..1..0..0....1..1..0..2..2..2....0..2..0..2..1..2....1..0..2..2..1..0
..0..2..2..2..2..2....2..2..0..2..0..0....2..2..2..2..2..2....1..1..1..1..0..0
..1..1..0..0..1..1....1..0..0..1..0..2....1..1..0..0..1..0....0..0..2..2..2..2
..2..2..2..1..1..2....0..2..0..2..2..2....2..2..0..2..2..0....0..0..1..2..1..1

Crossrefs

Sequence in context: A278200 A340055 A246226 * A184771 A210075 A187016

Adjacent sequences: A204941 A204942 A204943 * A204945 A204946 A204947

Keyword

nonn

Author

R. H. Hardin Jan 20 2012

Status

approved