OFFSET
1,2
COMMENTS
Diagonal of A203460
EXAMPLE
Some solutions for n=5
..2..2..2..0..0....2..2..1..1..0....0..2..2..2..2....1..1..0..0..0
..2..0..2..1..0....2..2..1..1..1....0..2..2..2..2....1..2..2..1..0
..2..1..2..1..0....0..1..2..2..1....0..1..0..0..0....2..2..2..1..0
..2..1..2..2..0....2..2..2..2..1....1..1..2..2..0....2..0..0..2..2
..2..2..2..2..0....2..2..0..0..0....1..1..2..2..0....2..2..2..2..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 02 2012
STATUS
approved