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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
0
1, 1, 5, 602, 373780, 33093252880, 14216413305846436, 2562708724272040433794232, 2209363619821632289359062591728192
OFFSET
1,3
COMMENTS
Diagonal of A216084
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
KEYWORD
nonn
AUTHOR
R. H. Hardin Sep 01 2012
STATUS
approved