OFFSET
1,2
COMMENTS
Row 4 of A231080
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=3
..0..3..2....0..3..2....0..1..0....0..3..2....0..3..2....0..3..2....0..3..2
..2..1..0....0..1..0....0..3..2....0..1..0....0..1..0....0..1..2....0..1..0
..1..2..1....0..3..2....2..1..2....2..3..2....0..1..0....2..3..2....2..1..0
..1..0..3....2..1..0....0..3..0....2..1..0....0..3..2....0..1..2....2..3..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 03 2013
STATUS
approved