OFFSET
3,1
EXAMPLE
Maximal zeros solution for n=14
...............0
..............0.0
.............0.3.3
............3.0.0.0
...........0.0.3.0.0
..........0.3.0.0.3.3
.........3.0.0.3.0.0.0
........0.0.3.0.0.3.0.0
.......0.3.0.0.3.0.0.3.3
......3.0.0.3.0.0.3.0.0.0
.....0.0.3.0.0.3.0.0.3.0.0
....0.3.0.0.3.0.0.3.0.0.3.3
...3.0.0.3.0.0.3.0.0.3.0.0.0
..0.0.3.0.0.3.0.0.3.0.0.3.0.0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 04 2009
STATUS
approved