OFFSET
1,2
COMMENTS
Column 5 of A221817.
EXAMPLE
Some solutions for n=3
..0..2..1..1..0....0..2..1..0..0....0..1..1..0..2....1..1..0..0..0
..0..1..2..2..1....0..1..1..2..2....0..2..1..2..0....1..2..1..3..2
..0..2..1..1..1....1..2..1..2..0....1..2..1..2..0....1..1..0..2..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 26 2013
STATUS
approved