A206613 Number of (n+1)X(n+1) 0..2 arrays with every 2X3 or 3X2 subblock having no more than two equal edges, and new values 0..2 introduced in row major order.

14, 1155, 623933, 1719525751, 24021101375251, 1738678950539792051

Offset: 1

Author

R. H. Hardin Feb 10 2012

Keywords

• nonn

Comments

Diagonal of A206621

Examples

			Some solutions for n=4
..0..0..1..2..2....0..0..0..0..1....0..0..0..1..2....0..0..1..2..2
..2..1..2..1..1....1..2..1..2..0....1..0..2..0..2....2..1..0..0..1
..1..2..1..1..2....1..0..2..1..0....0..1..0..0..1....2..0..1..1..0
..1..1..0..2..1....1..2..0..0..2....2..0..2..2..0....0..2..2..0..1
..2..0..1..2..1....0..0..1..0..1....1..2..1..2..1....0..1..0..2..1