OFFSET
1,1
COMMENTS
Column 6 of A221303
EXAMPLE
Some solutions for n=3
..0..1..2..0..2..0....0..1..2..0..2..1....0..1..2..0..2..1....0..1..1..2..1..0
..0..1..1..2..1..2....0..1..1..2..0..2....0..2..1..2..1..2....0..1..0..2..0..2
..0..2..2..0..0..2....0..2..2..1..1..0....0..1..2..0..0..1....0..2..2..2..2..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 09 2013
STATUS
approved