OFFSET
1,1
COMMENTS
Column 4 of A221852
EXAMPLE
Some solutions for n=3
..0..2..1..0....0..2..0..0....0..1..1..0....0..3..0..2....0..4..0..2
..0..0..3..0....0..1..7..0....1..0..1..4....0..1..0..2....0..0..1..0
..1..3..2..0....1..0..1..0....0..3..0..1....0..1..1..2....0..3..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 27 2013
STATUS
approved