OFFSET
1,1
COMMENTS
Column 2 of A253615
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=2
..0..0..0..0....0..0..1..1....0..1..0..0....0..1..0..0....0..1..1..0
..1..0..0..1....2..2..1..2....2..2..2..1....2..2..1..2....1..2..1..2
..2..1..2..1....1..0..0..1....0..2..2..2....2..0..2..0....2..0..2..2
..2..2..2..2....0..0..0..2....1..0..0..0....0..0..0..2....0..1..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 05 2015
STATUS
approved