OFFSET
1,1
COMMENTS
Column 5 of A209365
EXAMPLE
Some solutions for n=3
..1..1..2..3..2....1..1..1..1..1....1..2..3..2..1....1..2..3..1..3
..1..2..3..1..3....2..2..3..2..1....1..2..1..2..1....1..1..3..1..3
..2..3..3..1..3....3..2..2..2..2....1..3..1..3..2....3..2..3..1..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 06 2012
STATUS
approved