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A216608
Number of horizontal, diagonal 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, 2, 203, 83437, 6423127757, 2043835395791757, 324446722340564335642246
OFFSET
1,3
COMMENTS
Diagonal of A216612
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....1..x..2..x....1..x..2..x....2..x..3..x
..x..4..x..1....x..4..x..1....x..3..x..4....x..0..x..3....x..4..x..1
..5..x..0..x....1..x..5..x....2..x..5..x....3..x..2..x....1..x..3..x
CROSSREFS
Sequence in context: A203773 A349982 A209185 * A375842 A238819 A110899
KEYWORD
nonn
AUTHOR
R. H. Hardin Sep 10 2012
STATUS
approved