OFFSET
1,1
COMMENTS
Diagonal of A185521
EXAMPLE
Some solutions for 3X3
..0..1..1....0..0..2....2..1..2....1..0..1....0..0..2....1..0..2....1..0..0
..0..0..0....2..0..2....0..0..0....0..0..1....1..0..2....2..0..0....2..0..2
..2..2..1....2..0..0....0..2..0....1..0..0....1..0..0....2..0..1....2..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 29 2011
STATUS
approved