A229528 Number of defective 3-colorings of an n X n 0..2 array connected horizontally, diagonally and antidiagonally with exactly one mistake, and colors introduced in row-major 0..2 order.

0, 4, 58, 3064, 221096, 34811238, 10551803060, 6668992563052, 8651918812282962, 23339962598582951552, 131977442018454063156484, 1555694872005636764531499932, 38779168607364170627075586723246

Offset

1,2

Comments

Diagonal of A229534.

Links

Table of n, a(n) for n=1..13.

Example

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

Crossrefs

Cf. A229534.

Sequence in context: A216352 A295406 A375442 * A109056 A326944 A155204

Adjacent sequences: A229525 A229526 A229527 * A229529 A229530 A229531

Keyword

nonn

Author

R. H. Hardin, Sep 25 2013

Status

approved