OFFSET
1,1
COMMENTS
Diagonal of A205944.
EXAMPLE
Some solutions for n=4:
..0..0..3..1..1....3..3..1..3..3....0..1..0..3..3....0..1..2..3..2
..0..2..0..0..0....0..0..2..2..2....1..3..3..3..3....0..0..2..0..3
..1..3..0..2..1....0..0..1..2..2....1..2..3..3..0....0..0..3..2..2
..2..3..0..3..2....3..3..2..3..3....1..1..2..2..1....0..2..0..2..0
..3..3..1..0..2....2..0..3..3..3....1..1..1..3..2....1..3..0..2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 01 2012
STATUS
approved