OFFSET
1,1
COMMENTS
Column 4 of A221192
EXAMPLE
Some solutions for n=3
..0..0..0..0....0..3..2..0....0..2..2..0....0..0..2..1....0..0..4..2
..0..2..0..3....0..3..3..1....1..3..1..1....0..6..0..0....2..1..1..0
..0..3..4..0....0..0..0..0....0..0..2..0....0..0..3..0....0..1..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 04 2013
STATUS
approved