OFFSET
1,2
COMMENTS
Column 3 of A221341
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..17
EXAMPLE
Some solutions for n=3
..0..0..2....1..2..2....1..2..2....1..0..0....1..1..0....0..2..0....1..1..0
..2..1..0....1..0..1....1..1..0....1..2..2....2..1..0....2..0..0....2..2..2
..2..2..0....1..1..0....1..1..0....1..0..2....2..2..0....2..2..1....1..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 11 2013
STATUS
approved