A216087 Number of horizontal and antidiagonal neighbor colorings of the odd squares of a 5Xn array with new integer colors introduced in row major order

2, 27, 203, 15144, 373780, 87852160, 4044766240, 2004646634218, 142953007126612, 123560104158582188, 12361734369562410736

Offset

1,1

Comments

Row 5 of A216084

Links

Table of n, a(n) for n=1..11.

Example

Some solutions for n=4
..x..0..x..1....x..0..x..1....x..0..x..1....x..0..x..1....x..0..x..1
..2..x..3..x....2..x..3..x....2..x..3..x....2..x..3..x....2..x..3..x
..x..1..x..2....x..2..x..3....x..0..x..4....x..4..x..0....x..4..x..5
..3..x..0..x....0..x..4..x....1..x..3..x....1..x..5..x....0..x..4..x
..x..1..x..3....x..2..x..1....x..5..x..4....x..1..x..2....x..6..x..3

Crossrefs

Sequence in context: A263930 A051766 A058406 * A049070 A197316 A175529

Adjacent sequences: A216084 A216085 A216086 * A216088 A216089 A216090

Keyword

nonn

Author

R. H. Hardin Sep 01 2012

Status

approved