A205430 - OEIS

A205430

Number of (n+1)X8 0..3 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..3 introduced in row major order

5514982, 2848901694, 2098930772556, 1565428649231412, 1210040924920270258

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 7 of A205431

LINKS

Table of n, a(n) for n=1..5.

EXAMPLE

Some solutions for n=4

..0..0..0..0..1..0..1..0....0..1..2..3..3..1..3..1....0..1..1..0..0..1..0..1

..0..0..2..2..0..1..2..2....1..0..2..2..2..3..1..0....2..0..2..1..1..1..2..0

..3..0..1..2..0..0..3..2....3..2..1..0..2..1..1..2....1..3..0..0..1..1..1..1

..3..2..0..2..2..2..0..1....2..1..2..1..2..2..2..0....1..1..2..0..3..1..1..3

..1..3..3..0..1..2..3..0....3..3..1..2..2..2..0..2....3..3..1..0..0..2..1..2

CROSSREFS

Sequence in context: A263197 A283652 A206176 * A208455 A207825 A204802

Adjacent sequences: A205427 A205428 A205429 * A205431 A205432 A205433

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 27 2012

STATUS

approved