A232132 Number of (n+1)X(3+1) 0..2 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with values 0..2 introduced in row major order.

200, 10956, 602468, 33162868, 1825568436, 100495188564, 5532131001812, 304536704087316, 16764354299718484, 922856165828434964, 50802046269213120468, 2796587378080211658132, 153948542186521174138196

Offset

1,1

Comments

Column 3 of A232137

Links

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

Formula

Empirical: a(n) = 65*a(n-1) -588*a(n-2) +2304*a(n-3) -5156*a(n-4) +7136*a(n-5) -5632*a(n-6) +2048*a(n-7) -256*a(n-8)

Example

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

Crossrefs

Sequence in context: A230966 A221039 A221502 * A278191 A248453 A035835

Adjacent sequences: A232129 A232130 A232131 * A232133 A232134 A232135

Keyword

nonn

Author

R. H. Hardin, Nov 19 2013

Status

approved