A231521 Number of nX6 0..1 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors.

21, 1069, 25556, 680302, 17572772, 451200772, 11683058939, 302190345444, 7806399525348, 201765495180944, 5215449996133433, 134798889001969231, 3484039440752712049, 90050899758881308054, 2327507605574582278738

Offset: 1

Author

R. H. Hardin, Nov 10 2013

Keywords

• nonn

Comments

Column 6 of A231523

Examples

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

Links

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