OFFSET
1,1
COMMENTS
Column 7 of A209476
EXAMPLE
Some solutions for n=3
..0..0..1..1..0..0..0....1..2..0..1..2..2..0....2..0..0..0..0..1..0
..2..2..2..1..1..0..0....1..0..0..1..2..0..1....0..2..0..2..2..1..2
..2..2..2..1..1..0..0....0..2..1..1..2..0..1....0..2..0..2..2..2..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 09 2012
STATUS
approved