A209678 Number of n X n 0..3 arrays with every element equal to a diagonal or antidiagonal reflection, and new values 0 upwards introduced in row major order.

1, 14, 608, 246038, 166075313, 1008907523438, 10215188674804688, 930859067991577148438, 141374220951220779418945313, 193240888262699902868270874023438

Offset: 1

Author

R. H. Hardin Mar 11 2012

Keywords

• nonn

Comments

Column 2 of A209684

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..42