OFFSET
1,1
COMMENTS
Row 7 of A250561
EXAMPLE
Some solutions for n=3
..0....2....0....3....0....3....0....2....2....1....1....2....3....0....2....3
..3....0....2....2....1....0....0....2....0....1....1....2....1....3....0....2
..2....3....2....0....3....2....3....2....0....0....0....2....2....2....2....2
..3....3....2....1....1....3....2....2....0....0....1....1....1....1....0....3
..0....3....1....3....0....3....3....3....1....2....2....0....2....2....1....1
..2....3....3....3....0....2....0....2....2....3....1....1....3....3....3....2
..2....3....2....3....0....2....1....1....3....0....0....2....1....1....2....0
..2....1....0....0....3....0....2....3....0....1....1....3....2....1....2....1
..1....3....0....1....0....3....0....3....2....1....3....1....0....0....2....0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 25 2014
STATUS
approved