OFFSET
1,1
COMMENTS
Row 7 of A219802
EXAMPLE
Some solutions for n=3
..0..0..0....0..0..0....2..0..0....2..2..2....0..0..0....0..0..0....2..0..0
..0..0..0....0..0..0....1..0..0....1..1..1....0..0..0....0..0..0....2..0..0
..0..0..0....2..2..3....1..0..0....1..1..1....2..2..2....0..0..0....1..0..0
..0..0..0....2..2..3....1..0..0....1..1..1....2..0..0....1..1..1....1..0..0
..1..0..0....2..1..1....2..1..1....1..0..0....0..0..0....2..2..3....1..0..0
..3..0..0....2..1..1....3..2..2....1..0..0....0..0..0....3..3..3....3..2..2
..3..2..2....3..1..1....3..3..3....2..0..0....0..0..0....3..3..3....3..3..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 28 2012
STATUS
approved