OFFSET
1,1
COMMENTS
Column 5 of A221139
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..13
EXAMPLE
Some solutions for n=3
..0..2..1..2..1....0..1..2..1..2....0..1..2..2..0....0..0..1..2..2
..1..2..0..1..2....0..0..2..1..2....1..0..1..1..0....2..0..1..2..1
..0..1..1..0..1....2..2..0..0..0....2..1..2..2..0....2..1..0..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 02 2013
STATUS
approved