OFFSET
1,1
COMMENTS
Column 4 of A221165
EXAMPLE
Some solutions for n=3
..0..2..2..0....0..2..0..1....0..1..4..0....0..2..0..2....0..3..0..3
..0..3..1..0....0..4..1..2....0..2..0..1....0..0..2..1....0..2..2..0
..1..1..2..0....2..0..0..0....2..0..2..0....4..1..0..0....1..0..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 03 2013
STATUS
approved