OFFSET
1,3
COMMENTS
Column 7 of A215075.
EXAMPLE
Some solutions for n=9:
..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0
..1....1....1....1....1....1....1....1....1....1....1....1....1....1....1....1
..2....2....2....2....2....2....2....2....2....2....2....2....2....2....2....2
..3....0....1....3....1....3....3....1....3....3....0....3....1....1....3....0
..4....3....3....4....3....4....4....3....4....0....3....4....3....3....4....3
..0....1....1....5....4....5....1....0....2....2....4....5....4....0....0....4
..3....4....0....4....0....4....5....4....5....4....5....6....0....1....1....0
..1....2....4....0....2....1....3....2....0....5....1....7....5....0....0....5
..2....0....1....6....3....2....0....5....1....4....6....2....1....3....5....2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Aug 02 2012
STATUS
approved