A229313 Number of n X n 0..3 arrays of the median of the corresponding element, the element to the east and the element to the south in a larger (n+1)X(n+1) 0..3 array without adjacent equal elements in the latter

4, 154, 34022, 33330044, 151503568022, 3239971166331308

Offset

1,1

Comments

Diagonal of A229320

Links

Table of n, a(n) for n=1..6.

Example

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

Crossrefs

Sequence in context: A244448 A197204 A197802 * A300530 A303898 A370230

Adjacent sequences: A229310 A229311 A229312 * A229314 A229315 A229316

Keyword

nonn

Author

R. H. Hardin Sep 19 2013

Status

approved