OFFSET
1,2
COMMENTS
Column 7 of A217346.
EXAMPLE
Some solutions for n=3
..0..1..0..2..1..1..1....0..1..0..1..1..2..1....0..1..0..1..1..1..1
..0..2..2..2..1..0..2....0..1..3..3..1..0..1....0..2..1..1..2..2..2
..1..2..1..0..2..0..0....1..1..1..1..2..0..0....1..1..0..1..1..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 01 2012
STATUS
approved