OFFSET
1,2
COMMENTS
Column 3 of A200082
EXAMPLE
Some solutions for n=6
..3....1....3....1....2....1....0....2....3....2....0....0....2....1....3....2
..1....2....2....2....3....0....1....1....3....1....0....2....0....3....3....2
..1....1....1....3....2....1....2....0....3....2....0....2....0....3....1....2
..2....0....1....3....1....2....2....0....3....3....0....1....1....2....0....2
..3....0....2....2....1....2....1....1....3....3....0....0....2....1....1....2
..3....1....3....1....2....1....0....2....3....2....0....0....2....1....3....2
..1....2....2....2....3....0....1....1....3....1....0....2....0....3....3....2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 13 2011
STATUS
approved