1,1

sigma(499997)+p(499997)=7890481=53^4.

Sequence in context: A124087 A064305 A100200 this_sequence A127491 A143475 A101798

Adjacent sequences: A114080 A114081 A114082 this_sequence A114084 A114085 A114086

nonn

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