OFFSET
1,1
COMMENTS
Column 4 of A202581
EXAMPLE
Some solutions for n=2
..1..0..1..3....0..1..0..1....2..1..2..3....1..2..2..3....0..2..3..3
..0..3..3..1....1..1..3..2....1..2..3..2....0..2..3..3....3..1..2..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 21 2011
STATUS
approved