OFFSET
1,1
COMMENTS
Column 4 of A238323.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=3
..1..2..2..2..2....2..2..2..1..1....1..2..2..2..1....1..1..1..0..0
..0..0..0..0..0....0..2..2..1..0....0..1..1..1..1....1..1..0..0..0
..0..0..0..0..0....0..0..1..1..0....0..1..1..1..1....1..1..0..0..0
..0..0..0..2..2....0..0..1..1..0....0..2..2..2..1....1..2..2..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 24 2014
STATUS
approved