A205467 Number of (n+1) X (n+1) 0..2 arrays with every 2 X 2 subblock having the same number of equal edges, and new values 0..2 introduced in row major order.

14, 263, 14639, 2368164, 1002405121, 1094476686239, 3037575583505983, 21477571401148556382, 385928233193168681488351

Offset: 1

Author

R. H. Hardin, Jan 27 2012

Keywords

• nonn

Comments

Diagonal of A205475.

Examples

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

Crossrefs

Cf. A205475.