OFFSET
1,1
COMMENTS
Column 5 of A217457.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..26
EXAMPLE
Some solutions for n=3
..2..2..1..1..1....0..0..0..1..1....2..2..2..2..1....0..1..0..1..2
..1..1..1..0..1....0..0..1..2..1....2..2..2..0..1....0..0..0..0..0
..1..1..0..0..0....0..0..0..2..2....2..2..0..0..0....0..0..0..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 03 2012
STATUS
approved