OFFSET
1,1
COMMENTS
Diagonal of A233635
EXAMPLE
Some solutions for n=2
..3..1..1....3..2..3....3..0..1....3..1..3....2..3..2....1..2..2....1..0..0
..2..3..0....2..0..2....3..3..1....0..0..1....0..0..1....0..3..0....3..0..3
..2..0..0....0..1..0....1..0..1....2..3..2....0..3..3....0..2..1....2..0..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 14 2013
STATUS
approved