OFFSET
1,1
COMMENTS
Column 5 of A221345
EXAMPLE
Some solutions for n=3
..0..1..0..2..0....0..1..2..2..1....0..2..1..0..2....0..0..2..1..0
..0..0..2..2..2....0..0..0..2..1....0..1..0..1..1....0..2..2..2..0
..2..1..1..1..1....1..1..1..1..2....1..2..2..0..2....2..0..2..0..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 11 2013
STATUS
approved