OFFSET
1,1
COMMENTS
Diagonal of A234083
EXAMPLE
Some solutions for n=3
..1..3..1..3....3..1..1..3....3..0..1..4....2..1..2..1....2..4..4..1
..4..4..2..4....4..4..2..4....1..0..3..4....1..4..3..4....3..1..3..2
..1..3..1..3....1..3..1..3....3..0..1..4....2..1..4..1....4..2..0..1
..0..2..4..2....0..0..0..2....1..2..3..4....4..3..4..3....1..1..3..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 19 2013
STATUS
approved