OFFSET
1,1
COMMENTS
Diagonal of A235902
EXAMPLE
Some solutions for n=3
..0..0..2..1....0..2..1..2....1..1..1..2....1..0..2..1....1..0..1..1
..1..1..1..0....0..2..1..0....2..0..2..1....1..2..0..1....2..1..0..0
..0..0..2..1....1..1..0..1....0..2..0..1....2..1..1..2....2..1..2..2
..1..1..1..2....2..0..1..0....2..0..2..1....1..2..0..1....2..1..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 16 2014
STATUS
approved