OFFSET
1,1
COMMENTS
Column 4 of A236704
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=2
..0..1..0..0..0....1..1..1..0..1....1..2..2..0..2....1..2..2..0..0
..2..0..1..2..2....2..1..1..0..0....0..0..2..1..1....1..0..0..0..0
..0..2..0..1..0....2..1..2..2..0....2..0..2..2..2....0..1..2..2..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 30 2014
STATUS
approved