OFFSET
1,1
COMMENTS
Column 4 of A216694
EXAMPLE
Some solutions for n=2
..0..1..2..3....0..1..0..1....0..1..2..3....0..1..0..2....0..1..0..2
..4..5..6..0....2..3..4..5....4..5..4..5....3..4..3..4....2..3..4..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Sep 14 2012
STATUS
approved