OFFSET
1,3
COMMENTS
Diagonal of A230275
EXAMPLE
Some solutions for n=3
..0..0..1....0..1..2....0..1..0....0..2..2....0..2..1....0..2..1....0..2..1
..1..0..2....2..1..0....2..2..2....1..1..0....1..2..0....1..2..0....1..2..0
..2..0..1....2..0..2....1..0..2....2..0..2....0..1..0....0..2..1....0..1..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 14 2013
STATUS
approved