OFFSET
1,1
COMMENTS
Row 7 of A240000
EXAMPLE
Some solutions for n=3
..0..0..0....0..0..0....0..0..0....0..0..3....0..0..0....0..0..0....0..0..0
..0..3..3....3..3..0....3..3..0....0..0..0....0..0..0....3..3..0....0..0..3
..0..3..3....2..2..3....3..3..1....0..0..2....3..3..0....0..2..1....0..3..3
..0..2..1....0..2..0....3..1..2....0..0..2....2..2..3....2..0..0....3..3..2
..0..0..2....0..0..3....0..2..0....0..0..0....2..2..0....2..0..2....3..2..3
..0..0..2....0..3..3....2..2..3....3..3..0....0..2..0....2..1..2....3..1..0
..0..3..3....0..3..1....0..2..1....0..3..3....2..2..2....0..2..2....0..2..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 30 2014
STATUS
approved