OFFSET
1,1
COMMENTS
Diagonal of A201216
EXAMPLE
Some solutions for n=3
..0..2..2....0..1..2....1..1..2....1..1..2....0..0..1....0..0..0....0..0..0
..0..2..3....0..1..3....1..2..2....1..3..3....0..2..2....0..1..2....1..1..1
..2..3..3....0..2..3....2..3..3....1..2..3....3..3..3....1..1..1....1..3..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 28 2011
STATUS
approved