OFFSET
1,1
COMMENTS
Column 2 of A237548
EXAMPLE
Some solutions for n=1
..0..0..1..0....1..0..0..2....0..2..0..0....2..0..1..2....2..1..1..1
..1..2..0..2....0..2..2..0....0..0..1..2....1..1..1..2....1..1..0..1
..2..1..2..1....0..0..0..0....2..0..0..1....1..1..1..1....0..1..2..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 09 2014
STATUS
approved