A231943 Number of 4Xn 0..3 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors.

256, 1328, 152180, 11159202, 691418144, 35573826030, 2011419734476, 124582053082101, 7653265481401592, 452142751713371321, 26462994900702111962, 1569385399161912987654, 93821782986385180580504

Offset: 1

Author

R. H. Hardin, Nov 15 2013

Keywords

• nonn

Comments

Row 4 of A231940

Examples

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

Links

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