A207757 Number of n X n 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 1 1 and 1 0 1 vertically.

2, 16, 82, 663, 6552, 56651, 887114, 17141340, 265932767, 7838599272, 322656587622, 9334787856534, 545237703029106, 50069011902134767, 2724265960028933880, 333854434181630056441, 70233064417444890074531

Offset: 1

Author

R. H. Hardin Feb 19 2012

Keywords

• nonn

Comments

Diagonal of A207762

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..18