A216024 Number of horizontal, vertical and diagonal neighbor colorings of the odd squares of an n X n array with new integer colors introduced in row major order.

1, 2, 4, 371, 146327, 10311562327

Offset: 1

Author

R. H. Hardin, Aug 30 2012

Keywords

• nonn

Comments

Diagonal of A216031.

Examples

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

Crossrefs

Cf. A216031.