OFFSET
1,1
COMMENTS
Diagonal of A224642
EXAMPLE
Some solutions for n=2
..1..1..0..0..0..1..0..0....1..0..0..0..0..0..0..2....1..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..0....1..0..0..0..0..0..0..1....1..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..0....2..0..0..0..0..0..0..0....0..0..0..1..0..1..0..0
..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..1....0..0..0..1..0..1..0..0
..0..0..0..0..0..0..0..0....1..0..0..0..0..0..0..2....0..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..0....2..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..1....0..0..0..1..0..1..0..0
..0..0..0..2..1..1..1..1....0..0..0..0..0..0..0..1....2..0..0..0..0..0..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 13 2013
STATUS
approved