OFFSET
1,2
COMMENTS
Column 3 of A209058
EXAMPLE
Some solutions for n=4
..3..4..3....3..4..3....4..4..1....3..4..4....5..2..4....2..3..5....2..4..4
..1..1..3....1..2..3....2..1..1....2..2..3....2..2..2....1..2..2....2..2..2
..3..3..2....1..1..1....2..2..4....4..2..2....2..2..3....1..1..1....4..1..1
..4..2..3....4..2..3....2..2..4....4..4..4....3..4..5....5..3..2....1..1..4
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 04 2012
STATUS
approved