OFFSET
1,6
COMMENTS
Column 3 of A216645
EXAMPLE
All solutions for n=8
..1....3....1....2....2....1
..1....4....2....2....2....2
..4....5....2....2....4....3
..5....6....5....3....4....4
..5....6....5....6....4....5
..5....6....7....7....4....6
..7....6....7....7....8....7
..8....6....7....7....8....8
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Sep 11 2012
STATUS
approved