A207853 Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 0 and 1 0 1 vertically.

2, 16, 102, 1369, 44121, 2934369, 298294290, 56804048896, 22612514662790, 17183745725983369, 23510773704878179041, 60748271137827940655041, 304386527035085508883292036, 2891218911926091087027201634564

Offset: 1

Author

R. H. Hardin Feb 21 2012

Keywords

• nonn

Comments

Diagonal of A207858

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..15