OFFSET
1,1
COMMENTS
Diagonal of A223305
EXAMPLE
Some solutions for n=3
..2..5..8....1..2..4....4..1..3....7..8..4....4..7..3....8..7..6....8..4..8
..0..2..4....2..4..7....1..2..4....3..4..1....5..8..4....7..6..7....4..2..4
..2..0..1....4..1..4....0..1..2....4..2..4....9..5..2....4..3..6....5..4..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 19 2013
STATUS
approved