1,1

sigma(25) * p(25) = 3007 = 31*97.

Sequence in context: A110878 A077137 A023194 this_sequence A090676 A000291 A081055

Adjacent sequences: A114077 A114078 A114079 this_sequence A114081 A114082 A114083

nonn,base

Giovanni Resta (g.resta(AT)iit.cnr.it), Feb 13 2006