OFFSET
1,1
COMMENTS
Column 7 of A251935
EXAMPLE
Some solutions for n=4
..2....0....2....1....6....7....7....7....2....7....6....7....6....4....4....5
..6....3....1....0....3....4....6....1....5....7....1....1....6....0....5....5
..4....1....0....1....3....1....4....0....2....4....5....6....6....2....6....0
..7....0....5....2....0....3....4....2....7....5....6....4....6....4....6....3
..2....2....0....0....4....5....1....1....1....2....7....2....7....7....5....0
..3....7....5....4....2....0....1....6....7....0....2....3....0....0....1....4
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 11 2014
STATUS
approved