OFFSET
1,1
COMMENTS
Column 3 of A250320
EXAMPLE
Some solutions for n=6
..0....0....0....0....1....3....0....0....2....2....2....2....1....0....3....1
..1....1....2....2....0....2....3....1....3....1....3....0....2....0....0....3
..1....1....3....0....3....0....3....0....2....3....3....0....0....2....0....3
..0....3....1....2....2....1....3....0....2....3....1....1....0....2....0....0
..2....3....0....1....2....3....3....1....1....3....1....0....1....2....2....2
..0....2....3....3....3....3....1....3....3....1....1....0....3....0....2....2
..1....1....3....1....3....0....0....2....3....2....1....1....1....2....2....0
..2....0....3....3....2....1....1....3....0....3....2....1....2....2....1....0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 18 2014
STATUS
approved