A204319 Number of (n+2)X6 0..3 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..3 introduced in row major order

3885869, 610123426, 117341267705, 9238032333130, 1101610965293914, 142101116203936767

Offset

1,1

Comments

Column 4 of A204320

Links

Table of n, a(n) for n=1..6.

Example

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

Crossrefs

Sequence in context: A183592 A069375 A247088 * A251439 A256621 A213159

Adjacent sequences: A204316 A204317 A204318 * A204320 A204321 A204322

Keyword

nonn

Author

R. H. Hardin Jan 14 2012

Status

approved