OFFSET
1,2
COMMENTS
Column 3 of A199356
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..20
EXAMPLE
Some solutions for n=4
..0..1..2....0..1..2....0..1..2....0..1..1....0..1..0....0..1..0....0..0..1
..3..3..2....2..3..1....2..1..2....1..0..2....1..2..0....2..3..1....2..3..2
..2..1..3....2..0..3....3..0..1....3..2..3....2..3..3....1..2..0....3..1..2
..0..0..1....1..0..3....3..0..3....2..3..0....3..2..1....2..3..3....1..0..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 05 2011
STATUS
approved