A231936 Number of nX3 0..3 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors.

16, 668, 8426, 152180, 2462572, 36885538, 586971925, 9394148948, 147360195020, 2323912599668, 36828163940937, 581946068219980, 9192142912146333, 145366991149880099, 2298573739864122981, 36336196551594686076

Offset: 1

Author

R. H. Hardin, Nov 15 2013

Keywords

• nonn

Comments

Column 3 of A231940

Examples

			Some solutions for n=3
..1..1..0....0..1..0....1..2..2....2..1..1....1..2..1....0..0..0....1..2..1
..1..0..3....3..0..2....3..1..1....1..3..3....1..1..2....2..0..0....0..0..0
..0..0..0....0..2..0....1..1..1....1..1..3....3..1..1....0..0..2....0..0..1
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 65

Formula

Empirical recurrence of order 65 (see link above)