OFFSET
1,1
COMMENTS
Diagonal of A237945
EXAMPLE
Some solutions for n=2
..2..0..0....1..2..1....1..2..1....1..1..1....2..0..2....1..2..0....1..0..2
..1..2..2....0..2..0....0..2..0....2..2..2....0..1..0....0..2..1....2..1..1
..0..2..0....2..1..0....0..1..1....1..1..2....2..0..2....2..0..0....1..0..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 16 2014
STATUS
approved