A205429 Number of (n+1)X7 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

609086, 160862398, 55445403092, 19790583241516, 7075689720463554

Offset

1,1

Comments

Column 6 of A205431

Links

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

Example

Some solutions for n=4
..0..0..0..0..0..0..0....0..1..0..0..0..0..0....0..1..2..3..3..3..0
..0..0..1..2..0..0..1....1..1..2..0..0..3..2....0..1..1..3..1..0..1
..0..3..2..0..2..0..3....0..0..1..1..0..3..3....2..0..3..2..1..1..0
..3..0..3..0..0..2..0....0..0..1..0..1..0..2....2..0..0..1..2..3..1
..3..3..0..2..1..0..2....1..1..1..3..0..1..0....1..2..1..0..2..2..1

Crossrefs

Sequence in context: A218107 A274173 A206175 * A308279 A195281 A235069

Adjacent sequences: A205426 A205427 A205428 * A205430 A205431 A205432

Keyword

nonn

Author

R. H. Hardin Jan 27 2012

Status

approved