1,2
By size 3 X 3, ..., 6 X 6 A068722-A068725, by velocity limit 1..13 A068726-A068738.
Sequence in context: A147668 A177804 A023334 * A167068 A199646 A080050
Adjacent sequences: A068727 A068728 A068729 * A068731 A068732 A068733
nonn
R. H. Hardin (rhhardin(AT)att.net), Feb 26 2002