A209458 Number of n X n 0..6 arrays with every 2X2 subblock containing exactly one value repeat, and new values 0..6 introduced in row major order.

1, 6, 2027, 26142922, 9920302864598, 61881181615562063430

Offset: 1

Author

R. H. Hardin Mar 09 2012

Keywords

• nonn

Comments

Diagonal of A209465

Examples

			Some.solutions.for.n=4
..0..0..1..0....0..0..1..0....0..1..0..0....0..0..1..0....0..0..0..0
..1..2..0..2....1..2..0..3....0..2..1..2....1..2..0..2....1..2..1..2
..3..2..1..1....0..0..1..0....0..1..3..1....1..3..3..0....0..2..3..1
..0..2..3..4....1..2..0..2....0..2..2..2....0..0..1..0....0..1..1..4