A231212 Number of (n+1)X(n+1) 0..2 arrays with no element unequal to a strict majority of its horizontal and vertical neighbors, with values 0..2 introduced in row major order

3, 9, 93, 2892, 226764, 45593903, 23748656906, 31822302958042

Offset

1,1

Comments

Diagonal of A231219

Links

Table of n, a(n) for n=1..8.

Example

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

Crossrefs

Sequence in context: A203104 A237355 A007663 * A185174 A018695 A250302

Adjacent sequences: A231209 A231210 A231211 * A231213 A231214 A231215

Keyword

nonn

Author

R. H. Hardin, Nov 05 2013

Status

approved