1,2
Cf. A068239-A068305, A000332, A002417, A027441.
Sequence in context: A158044 A181751 A151596 * A003792 A195390 A003926
Adjacent sequences: A068297 A068298 A068299 * A068301 A068302 A068303
nonn
R. H. Hardin (rhhardin(AT)att.net), Feb 24 2002