A202468 Number of (n+2)X7 binary arrays with no more than two of any consecutive three bits set in any row or column.

317179, 18374521, 1044865367, 58746383721, 3323590649777, 187820723381421, 10610932604054547, 599616560193259281, 33881738532796270907, 1914496303093962715299, 108180387260313623312899

Offset: 1

Author

R. H. Hardin Dec 19 2011

Keywords

• nonn

Comments

Column 5 of A202471

Examples

			Some solutions for n=3
..0..0..0..0..0..0..0....0..0..0..0..0..1..0....0..0..0..0..0..1..0
..0..0..0..1..0..1..1....0..0..0..1..0..0..0....0..0..0..1..0..1..0
..0..0..0..1..0..0..0....0..0..0..0..1..0..0....0..0..0..1..1..0..0
..0..0..0..0..0..0..1....0..0..0..0..1..0..0....0..0..0..0..0..0..0
..0..0..0..0..0..1..1....0..0..0..0..0..0..0....0..0..0..1..0..0..1
		

Links

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