A231696 Number of nX4 0..3 arrays with no element less than a strict majority of its horizontal, vertical and antidiagonal neighbors.

50, 1998, 115583, 6074096, 286808607, 14007173906, 696904625544, 34390368202345, 1693611631652448, 83546478885400765, 4121506683565058802, 203261277285880002250, 10024941696145652614843, 494455010365407138814774

Offset: 1

Author

R. H. Hardin, Nov 12 2013

Keywords

• nonn

Comments

Column 4 of A231700

Examples

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

Links

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