OFFSET
1,1
COMMENTS
Column 4 of A222828
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..21
EXAMPLE
Some solutions for n=3
..0..1..1..2....0..1..2..3....0..1..1..2....0..1..2..3....0..1..2..3
..1..3..0..3....2..0..2..2....1..0..1..1....1..3..2..0....2..0..1..3
..3..3..2..1....1..3..3..0....2..3..2..0....2..3..1..2....2..2..3..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 06 2013
STATUS
approved