Primes sorted by relation of largest divisors of p+-1

[Franklin T. Adams-Watters]

But what about primes p such that the number of divisors of p-1 is equal to the number of divisors of p+1?

Hugo Pfoertner <all at abouthugo.de> wrote:

>Thanks to all who replied; the sequences will be A103664 & A103665. I've
>added a first term a(1)=2 (proposed by Vladeta Jovovic) in
>%S A103664 2 3 5 11 17 23 29 47 53 59 ...
>%N A103664 Primes p such that the number of divisors of p-1 is less than
>the number of divisors of p+1
>plus Mathematica Coding by Wouter and RGWv.
>
>I'll go back to check a fascinating series of new sequences just in the
>pipeline by Peter Luschny. Have a look at:
>http://www.luschny.de/math/rulers/prulers.html
>Feedback to Peter or to me welcome!
>
>Hugo
>


-- 
Franklin T. Adams-Watters
16 W. Michigan Ave.
Palatine, IL 60067
847-776-7645


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