OFFSET
1,1
COMMENTS
Diagonal of A185856
EXAMPLE
Some solutions for 3X3
..2..1..2....1..0..1....1..1..0....2..0..0....0..0..0....1..0..1....0..0..1
..0..2..0....2..2..2....2..0..1....0..1..0....1..0..1....0..2..1....2..0..2
..0..1..2....2..0..1....1..1..1....1..1..0....0..1..1....0..0..2....1..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 05 2011
STATUS
approved