OFFSET
1,1
COMMENTS
Diagonal of A224262
EXAMPLE
Some solutions for n=3
..0..2..0....0..1..0....0..0..0....1..1..0....1..2..0....2..1..1....0..1..0
..0..2..0....0..1..0....2..0..0....2..2..1....2..2..0....2..2..2....2..2..2
..0..2..0....1..1..2....2..1..0....2..2..2....2..2..0....2..2..2....2..2..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 02 2013
STATUS
approved