OFFSET
1,1
COMMENTS
Column 6 of A217547
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..23
EXAMPLE
Some solutions for n=3
..2..2..0..0..0..0....1..1..1..1..1..2....1..0..0..0..1..2....1..1..1..2..2..2
..1..1..0..0..0..0....1..1..0..0..0..1....1..0..0..0..0..0....1..1..1..2..1..1
..1..1..2..2..0..0....2..2..0..0..0..1....1..1..2..2..0..0....2..2..2..2..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 06 2012
STATUS
approved