A207910 Number of 5Xn 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 0 and 0 1 1 vertically.

13, 169, 611, 2209, 13865, 87025, 417425, 2002225, 10896915, 59305401, 303611925, 1554330625, 8194919925, 43206195321, 224558681991, 1167115069561, 6108464797743, 31970576988009, 166753685864931, 869761961442529

Offset: 1

Author

R. H. Hardin Feb 21 2012

Keywords

• nonn

Comments

Row 5 of A207908

Examples

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

Links

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