OFFSET
1,1
COMMENTS
Column 4 of A223022.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..23
EXAMPLE
Some solutions for n=3:
..2..0..2..1....2..0..2..2....0..1..2..1....1..0..0..1....0..1..1..0
..1..1..0..1....1..2..1..2....1..1..2..2....1..1..1..1....2..0..0..2
..2..0..2..1....2..0..2..2....0..1..2..1....2..1..1..2....0..1..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 11 2013
STATUS
approved