OFFSET
1,2
COMMENTS
Column 3 of A209023
EXAMPLE
Some solutions for n=4
..2..3..3....2..1..1....1..1..5....2..1..2....4..2..2....5..2..2....3..1..3
..3..2..2....3..2..1....1..1..2....4..1..3....3..2..2....3..2..2....3..1..2
..1..1..3....2..2..3....2..2..1....1..1..1....1..2..3....1..1..3....3..2..2
..1..3..2....2..1..1....5..2..1....1..3..4....1..4..2....1..2..5....3..2..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 04 2012
STATUS
approved