A209737 Number of n X n 0..5 arrays with every 2X2 subblock containing exactly one value repeat, and new values 0..5 introduced in row major order.

1, 6, 2025, 20611956, 3309942226828, 6126537051572916244, 126664397726626418134051983

Offset: 1

Author

R. H. Hardin Mar 12 2012

Keywords

• nonn

Comments

Diagonal of A209744

Examples

			Some solutions for n=5
..0..0..0..0..1....0..0..0..1..1....0..0..0..0..0....0..0..0..0..0
..1..2..1..2..0....1..2..1..2..0....1..2..1..2..1....1..2..1..2..1
..0..1..0..0..3....1..0..0..0..3....0..0..0..0..0....0..1..0..2..3
..1..2..1..2..2....3..3..4..1..0....1..2..1..2..1....1..4..4..0..2
..0..2..3..1..0....1..4..5..4..0....0..0..1..0..0....5..5..2..0..1