OFFSET
1,1
COMMENTS
Column 5 of A223747
EXAMPLE
Some solutions for n=3
..2..2..1..2..2....2..2..1..2..2....2..0..2..0..2....0..0..2..0..0
..1..0..1..0..1....1..0..0..2..0....2..0..1..2..1....0..1..1..1..0
..2..2..1..2..2....2..2..1..2..2....2..0..2..0..2....0..0..2..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 27 2013
STATUS
approved