[seqfan] sum of prime factors of p-1 and p+1

N. J. A. Sloane njas at research.att.com
Mon May 16 22:43:34 CEST 2011

Seq Fans, This just came in from a correspondent.
Can someone please compute further terms and submit it?

>From thekingfishb at yahoo.ca Mon May 16 13:51:01 2011
From: JM Bergot <thekingfishb at yahoo.ca>
Subject: A086715 & A001414

Primes p such that that for some prime q,
the sum of the prime factors of p-1 = q,
and the same for p+1:
11, 251 and 1429.

For 11 q is 7, for 251 it is 17, and for 1429 it is 31.


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