OFFSET
1,2
COMMENTS
Row 6 of A231246
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=2
..0..1....0..3....0..1....0..1....0..3....0..1....0..1....0..1....0..1....0..1
..2..3....0..1....2..3....2..3....0..1....2..1....2..1....2..1....2..1....2..3
..2..1....2..3....0..1....2..1....2..1....0..3....2..3....2..3....0..3....1..0
..0..1....2..1....0..1....3..0....2..3....2..1....0..1....0..3....0..1....3..2
..2..3....0..3....2..3....1..0....0..1....3..0....3..2....2..1....2..3....3..0
..0..1....2..3....2..1....3..2....2..3....1..2....1..0....0..1....2..1....1..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 06 2013
STATUS
approved