OFFSET
1,1
COMMENTS
Column 5 of A199523
EXAMPLE
Some solutions for n=3
..0..1..1..2..1....0..1..2..3..2....0..1..2..3..0....0..1..1..2..3
..0..1..3..2..2....0..1..3..3..2....0..2..2..3..1....0..3..2..2..3
..0..2..0..3..3....1..0..1..2..3....0..3..3..1..1....0..2..0..3..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 07 2011
STATUS
approved