A204529 Number of (n+2)X6 0..3 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally, and new values 0..3 introduced in row major order

179863061, 161070061826, 165807303413449, 103411902419816494, 81688563484381114374

Offset

1,1

Comments

Column 4 of A204530

Links

Table of n, a(n) for n=1..5.

Example

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

Crossrefs

Sequence in context: A047738 A079323 A228760 * A211239 A180464 A179586

Adjacent sequences: A204526 A204527 A204528 * A204530 A204531 A204532

Keyword

nonn

Author

R. H. Hardin Jan 15 2012

Status

approved