[seqfan] Re: Edit needed for dead link in A028491

Hugo Pfoertner yae9911 at gmail.com
Sat Sep 9 22:17:08 CEST 2017


Edit done; the general rule is to check URLs for "personalized" access (or
tracking) information before putting it in the href field of the links
section. In most cases the access works without this information. If it
doesn't, than the link might not work for the general public and should not
be included.

Hugo Pfoertner

On Sat, Sep 9, 2017 at 9:58 PM, Gottfried Helms <helms at uni-kassel.de> wrote:

> Concerning
>
> https://oeis.org/A028491
>
>   primes of the form M_p = (3^p-1)/2
>
> ---------------------------------------------
>
> We have a reference/link to Paul Bourdelais
>
>   Paul Bourdelais,
>     <a href="http://listserv.nodak.edu/cgi-bin/wa.exe?A2=ind0906&
> amp;L=nmbrthry&T=0&F=&S=&X=7769E632C9622BAE75&Y=paul.
> bourdelais%40gd-ais.com&P=999">
>        A Generalized Repunit Conjecture</a>
>
>
> but which does work no more.
>
> Manually I could locate the artice with that address:
>
>    https://listserv.nodak.edu/cgi-bin/wa.exe?A1=ind0906&L=NMBRTHRY
>
> and one has then to select the correct article.
> I feel unsafe to edit myself the entries of A028491 manually, please can
> someone
> do this for me?
>
> TIA, cordially -
>
> Gottfried Helms
>
> --
> Seqfan Mailing list - http://list.seqfan.eu/
>


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