A207736 Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 1 0 0 vertically.

2, 16, 114, 1849, 86355, 9259849, 2215586241, 1207251562500, 1504250577851460, 4240840118917220289, 26956572348445823078057, 387211891430119861291459849, 12581321412478916326490284012715, 923581786817019708657060682986420624

Offset: 1

Author

R. H. Hardin Feb 19 2012

Keywords

• nonn

Comments

Diagonal of A207741

Examples

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

Links

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