OFFSET
1,1
COMMENTS
Diagonal of A209829
EXAMPLE
Some solutions for n=4
..0..0..1..0..2....0..0..1..0..0....0..1..0..0..1....0..1..1..2..0
..2..0..0..0..2....2..0..0..0..0....0..0..0..0..0....1..0..1..2..2
..2..0..1..0..2....2..2..2..2..2....0..2..2..0..1....0..0..1..2..0
..2..0..0..0..2....1..1..2..2..0....0..0..0..0..1....0..1..1..2..2
..0..2..2..2..2....0..1..1..2..0....2..0..0..0..0....0..0..1..1..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 13 2012
STATUS
approved