A231294 Number of (n+1)X(n+1) 0..2 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with values 0..2 introduced in row major order

1, 5, 69, 1934, 103456, 10359556, 1965819189, 700770072586, 465403714589817

Offset

1,2

Comments

Diagonal of A231302

Links

Table of n, a(n) for n=1..9.

Example

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

Crossrefs

Sequence in context: A362101 A307700 A326435 * A302543 A157038 A211393

Adjacent sequences: A231291 A231292 A231293 * A231295 A231296 A231297

Keyword

nonn

Author

R. H. Hardin, Nov 07 2013

Status

approved