OFFSET
1,7
COMMENTS
Column 3 of A216635
EXAMPLE
All solutions for n=8
..0....1....2....1....0....0....1....0
..0....1....3....2....1....0....4....1
..2....1....4....2....2....0....4....1
..4....2....4....3....3....1....4....4
..4....5....4....3....4....2....5....5
..6....6....5....3....5....6....5....5
..6....6....6....7....6....6....5....5
..6....6....6....7....7....7....6....7
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Sep 11 2012
STATUS
approved