OFFSET
1,1
COMMENTS
Column 5 of A221773
EXAMPLE
Some solutions for n=3
..0..1..1..1..0....0..1..1..0..1....0..1..2..0..2....0..1..1..0..2
..0..3..3..1..1....0..3..0..4..0....0..3..1..0..0....0..3..1..3..0
..0..2..0..2..0....0..1..1..3..0....0..1..1..3..1....0..2..0..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 25 2013
STATUS
approved