OFFSET
1,1
COMMENTS
Diagonal of A226992
EXAMPLE
Some solutions for n=4
..1..2..2..2....1..2..2..3....1..2..2..3....0..0..1..3....0..0..1..2
..2..4..4..2....2..1..1..3....2..2..2..2....0..1..2..2....1..2..2..2
..2..4..4..3....2..1..2..3....2..0..2..2....1..2..1..0....2..4..2..2
..2..2..3..3....3..3..2..2....2..0..2..3....2..2..0..1....3..4..2..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jun 25 2013
STATUS
approved