OFFSET
1,1
COMMENTS
Row 4 of A223815.
EXAMPLE
Some solutions for n=3
..1..1..0....0..1..0....0..0..1....1..2..0....2..1..0....0..0..1....1..1..1
..0..2..0....0..2..0....0..2..1....1..0..2....2..0..1....1..0..0....0..2..2
..0..2..1....1..2..2....2..1..0....1..1..1....1..2..0....1..1..1....1..2..2
..1..2..1....2..2..2....2..1..2....1..2..0....2..0..1....1..2..2....2..2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 27 2013
STATUS
approved