OFFSET
1,1
COMMENTS
Column 6 of A219939
EXAMPLE
Some solutions for n=3
..2..2..2..1..0..2....2..1..1..1..0..0....0..0..0..0..0..0....2..2..0..0..0..0
..2..2..0..1..0..0....1..2..2..1..0..0....0..0..0..0..0..0....2..2..1..0..0..0
..3..3..0..0..0..1....1..1..1..3..0..0....3..3..0..2..2..2....2..2..2..2..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 01 2012
STATUS
approved