OFFSET
1,1
COMMENTS
Diagonal of A239649
EXAMPLE
Some solutions for n=3
..1..0..0....1..0..0....1..3..3....3..0..0....3..0..0....3..0..0....1..0..3
..1..3..1....2..1..0....2..3..2....2..1..1....2..0..3....2..3..3....1..0..0
..3..0..2....3..2..0....3..2..2....1..2..1....2..3..0....2..0..0....3..1..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 23 2014
STATUS
approved