A205632 Number of 8X(n+1) 0..2 arrays with every 2X2 subblock in a row having an equal number of equal diagonal or equal antidiagonal elements, adjacent rows differing in this number, and new values 0..2 introduced in row major order

352512, 4211904, 75419136, 1819019544, 50032728864, 1476599815224, 44843430265344, 1382078906899128, 42879337322182320, 1335447125119528872

Offset

1,1

Comments

Row 7 of A205626

Links

Table of n, a(n) for n=1..10.

Example

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

Crossrefs

Sequence in context: A172886 A172916 A172765 * A205334 A140942 A294858

Adjacent sequences: A205629 A205630 A205631 * A205633 A205634 A205635

Keyword

nonn

Author

R. H. Hardin Jan 29 2012

Status

approved