A231399 Number of (3+1)X(n+1) 0..2 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with values 0..2 introduced in row major order.

7, 15, 100, 311, 1706, 7844, 35696, 184692, 873979, 4399412, 22162876, 110261498, 564140421, 2850848402, 14542997263, 74409026027, 380043653506, 1950717998012, 10003505335070, 51373261673575, 264098740804503, 1357567141208027

Offset: 1

Author

R. H. Hardin, Nov 08 2013

Keywords

• nonn

Comments

Row 3 of A231396

Examples

			Some solutions for n=4
..0..0..0..0..0....0..0..0..1..1....0..0..0..1..1....0..1..0..1..0
..0..0..0..1..1....0..0..0..0..1....0..0..0..1..1....1..0..1..0..1
..2..2..1..1..1....0..0..0..1..0....0..0..0..1..1....0..1..0..1..1
..2..2..2..1..1....1..1..1..0..1....0..0..0..0..1....1..0..1..1..1
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 83

Formula

Empirical recurrence of order 83 (see link above)