A205334 Number of (n+1)X8 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

352512, 21939984, 1857980448, 176201014416, 16923247919040, 1628712097341660, 156775478748243528

Offset

1,1

Comments

Column 7 of A205335

Links

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

Example

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

Crossrefs

Sequence in context: A172916 A172765 A205632 * A140942 A294858 A274900

Adjacent sequences: A205331 A205332 A205333 * A205335 A205336 A205337

Keyword

nonn

Author

R. H. Hardin Jan 26 2012

Status

approved