1,2
Cf. A068239-A068305, A000332, A002417, A027441.
Sequence in context: A093252 A200806 A098148 * A157280 A182924 A206388
Adjacent sequences: A068252 A068253 A068254 * A068256 A068257 A068258
nonn
R. H. Hardin (rhhardin(AT)att.net), Feb 24 2002