OFFSET
1,2
COMMENTS
Row 5 of A222794.
EXAMPLE
Some solutions for n=3
..0..0..0....0..0..0....0..0..0....0..0..1....0..0..1....0..0..1....0..0..0
..0..0..1....0..0..0....0..0..1....0..0..0....2..0..1....1..1..1....1..0..0
..1..2..0....0..0..1....2..3..0....0..0..0....0..3..3....1..1..2....0..0..1
..0..3..3....1..0..2....3..1..1....0..0..2....3..3..3....2..3..3....2..0..0
..3..3..3....2..0..0....1..1..1....3..1..1....3..3..3....3..3..3....0..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 05 2013
STATUS
approved