A207899 Number of 6Xn 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 0 and 1 1 1 vertically.

26, 676, 2812, 12040, 49442, 205258, 856480, 3559040, 14795830, 61589756, 256239484, 1065818440, 4434375632, 18449465050, 76753459760, 319315656274, 1328477921238, 5526925286486, 22993687059966, 95661297604612

Offset: 1

Author

R. H. Hardin Feb 21 2012

Keywords

• nonn

Comments

Row 6 of A207895

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210