OFFSET
1,1
COMMENTS
Column 7 of A230176
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..28
EXAMPLE
Some solutions for n=3
..0..0..0..0..2..1..1....0..0..0..0..2..0..1....0..0..0..0..1..2..0
..2..0..2..2..1..2..1....2..0..2..2..2..1..2....2..0..2..0..0..1..1
..0..0..0..2..0..1..0....0..0..0..0..0..0..2....0..0..0..2..2..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 11 2013
STATUS
approved