1,1
phi(6+4)=4, which divides 16=sigma(6)+4, so 6 is a member of the sequence.
Cf. A000010, A000203.
Sequence in context: A134012 A103704 A135998 this_sequence A004471 A046953 A121765
Adjacent sequences: A015867 A015868 A015869 this_sequence A015871 A015872 A015873
nonn,easy
Robert G. Wilson v (rgwv(AT)rgwv.com)
There are no other terms < 4290000000 - Jud McCranie
Jud McCranie (j.mccranie(AT)comcast.net), Dec 26 1999
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