A204683 Number of nX6 0..3 arrays with no occurrence of three equal elements in a row horizontally, vertically, diagonally or antidiagonally, and new values 0..3 introduced in row major order

143, 447343, 563046972, 815364171994, 1155411237719424

Offset

1,1

Comments

Column 6 of A204685

Links

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

Example

Some solutions for n=5
..0..0..1..1..2..2....0..0..1..0..0..2....0..0..1..0..0..1....0..1..0..0..2..2
..0..1..3..1..3..1....1..1..0..0..3..1....1..2..1..0..1..3....0..2..3..3..0..1
..2..3..2..2..3..2....3..1..3..1..3..2....1..3..3..2..0..1....2..3..2..3..1..1
..0..2..1..1..2..1....2..2..3..3..2..0....0..0..1..1..3..3....1..3..3..0..1..3
..3..2..3..1..0..0....1..0..0..3..1..3....0..3..1..1..3..2....1..0..3..0..2..1

Crossrefs

Sequence in context: A265102 A046179 A208680 * A205159 A205308 A147553

Adjacent sequences: A204680 A204681 A204682 * A204684 A204685 A204686

Keyword

nonn

Author

R. H. Hardin Jan 18 2012

Status

approved