[seqfan] Re: Divisors which are perfect powers, and prime signatures A091050 and A212180

Tue Apr 16 13:21:29 CEST 2013

In one sequence a(36)={2,2} and in the other a(36)=4
idem for 72 : {3,2} instead of 5
idem for 100
etc.

2013/4/16 Richard J. Mathar <mathar at mpia-hd.mpg.de>

> http://oeis.org/A212180 and http://oeis.org/A091050 differ at a(36).
> Is this a typo in one of them or are both sequences correct?
>
> R. J. Mathar
>
> _______________________________________________
>
> Seqfan Mailing list - http://list.seqfan.eu/
>