OFFSET
1,2
COMMENTS
Diagonal of A208788
EXAMPLE
Some solutions for n=4
..0..1..0..0....0..0..1..2....0..0..0..0....0..0..0..0....0..0..1..2
..0..1..1..1....1..0..0..0....1..2..1..0....1..1..1..0....1..0..0..0
..0..2..0..0....1..1..1..0....3..0..1..0....0..2..1..0....1..1..1..0
..0..1..1..0....0..2..1..0....1..0..1..0....0..0..1..0....2..0..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 01 2012
STATUS
approved