A216077 Number of horizontal and antidiagonal neighbor colorings of the odd squares of an n X n array with new integer colors introduced in row major order

1, 1, 5, 602, 373780, 33093252880, 14216413305846436, 2562708724272040433794232, 2209363619821632289359062591728192

Offset

1,3

Comments

Diagonal of A216084

Links

Table of n, a(n) for n=1..9.

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..0..x....2..x..3..x
..x..4..x..3....x..2..x..4....x..2..x..3....x..3..x..4....x..1..x..3
..3..x..4..x....0..x..2..x....0..x..2..x....5..x..3..x....3..x..4..x

Crossrefs

Sequence in context: A303100 A302951 A208298 * A297949 A298558 A298768

Adjacent sequences: A216074 A216075 A216076 * A216078 A216079 A216080

Keyword

nonn

Author

R. H. Hardin Sep 01 2012

Status

approved