A205327 Number of (n+1)X(n+1) 0..2 arrays with the number of equal 2X2 subblock diagonal pairs and equal antidiagonal pairs differing from each horizontal or vertical neighbor, and new values 0..2 introduced in row major order

14, 594, 63270, 17757552, 13492233348, 27897722118120, 156775478748243528

Offset

1,1

Comments

Diagonal of A205335

Links

Table of n, a(n) for n=1..7.

Example

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

Crossrefs

Sequence in context: A218412 A129007 A041845 * A291121 A279294 A282053

Adjacent sequences: A205324 A205325 A205326 * A205328 A205329 A205330

Keyword

nonn

Author

R. H. Hardin Jan 26 2012

Status

approved