OFFSET
1,2
COMMENTS
Column 5 of A231080
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..80
EXAMPLE
Some solutions for n=3
..0..1..2..2..3....0..1..2..1..2....0..3..2..1..2....0..3..1..2..1
..0..3..2..0..1....2..3..0..3..2....2..1..2..3..0....2..1..3..0..3
..2..1..3..2..3....2..1..0..1..0....0..3..2..1..2....0..3..2..2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 03 2013
STATUS
approved