OFFSET
1,1
COMMENTS
Row 5 of A241397
EXAMPLE
Some solutions for n=3
..2..3..3....3..2..2....2..3..3....3..2..2....3..2..2....3..2..2....3..2..2
..2..1..2....1..2..0....2..3..2....1..2..0....2..1..0....1..2..0....1..2..0
..2..0..0....2..3..0....2..0..0....3..0..2....1..3..2....3..2..0....2..3..0
..2..3..3....2..3..2....2..0..3....3..2..2....1..0..0....1..0..0....1..3..2
..2..3..3....2..0..3....2..1..0....2..0..0....1..2..2....3..2..0....3..2..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 20 2014
STATUS
approved