OFFSET
1,1
COMMENTS
Row 3 of A268246.
EXAMPLE
Some solutions for n=2
..2..1....2..1....2..0....1..2....2..0....1..0....0..0....2..0....0..0....1..0
..0..0....1..1....1..1....0..2....1..0....2..1....1..2....2..1....2..2....0..1
..1..1....0..2....2..2....0..1....2..1....0..1....2..2....0..1....0..0....0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 29 2016
STATUS
approved