A204509 Number of (n+2)X6 0..2 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally at least two different ways, and new values 0..2 introduced in row major order

874124, 65497615, 5365887358, 299144720528, 19402036828532, 1289231277417171, 81814882335010569, 5269145762408141165, 340828084187350852760, 21927753769216466022296, 1412692681904698291134210

Offset

1,1

Comments

Column 4 of A204511

Links

R. H. Hardin, Table of n, a(n) for n = 1..67

Example

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

Crossrefs

Sequence in context: A293373 A306868 A223886 * A271263 A253523 A254421

Adjacent sequences: A204506 A204507 A204508 * A204510 A204511 A204512

Keyword

nonn

Author

R. H. Hardin Jan 15 2012

Status

approved