OFFSET
1,1
COMMENTS
Column 6 of A199201
EXAMPLE
Some solutions for n=4
..0..0..1..2..0..1....0..0..1..2..0..2....0..0..1..2..3..1....0..0..1..2..1..2
..0..0..2..3..1..3....0..0..2..3..1..3....0..0..3..1..0..3....0..0..2..1..2..3
..3..2..0..2..3..1....2..3..3..1..2..1....3..2..2..3..1..0....1..3..0..3..1..0
..2..1..2..3..1..3....1..3..3..2..1..0....1..2..2..1..2..3....3..2..3..1..3..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 03 2011
STATUS
approved