[seqfan] Re: prime(n)^n - 3

Trizen trizenx at gmail.com
Wed May 16 15:25:08 CEST 2018


I think David meant (prime(n)^n - 2). No other terms bellow 3500.

On Wed, May 16, 2018 at 4:09 PM, Neil Fernandez <primeness at borve.org> wrote:

> Hi David,
>
> I couldn't work out what sequence you mean here.
>
> (prime(n)^n - 3) is even for all n>1.
>
> Neil
>
>
> In message <A92AEE65-F622-45DE-86DF-E477FB49AEAA at yahoo.co.uk>, David
> Sycamore via SeqFan <seqfan at list.seqfan.eu> writes
>
> >n such that (prime(n)^n - 3) is prime gives 11 results so far (Maple):
> >
> >2,4,18,19,20,21,31,38,82,94,212
> >
> >Are there any more?
>
> --
> Neil Fernandez
>
> --
> Seqfan Mailing list - http://list.seqfan.eu/
>


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