[seqfan] Re: Numbers of the form: prime(n)^n - primorial (n-1)

[Neil Fernandez]

Hi David,

Your first sequence begins

1, 7, 119, 2371, 160841, 4824499, 410308643, 16983052531, 1801142961773,
420707010207331, 25408470426711601, 6582951805279545151,
925103094894275494511, 73885357039888240238239,
12063348337737606907045313, ...

and the second begins

2, 4, 5 ,8, 9, 15, 29, 213, 666

with no more terms <= 1000.


Neil


In message <0C621FFF-857B-4356-8389-4423D282BDD7 at yahoo.co.uk>, David
Sycamore via SeqFan <seqfan at list.seqfan.eu> writes

>These numbers are always odd and sometimes prime. 
>
>So far I find (without computer):
>
>1, 7, 119, 2371, 160841, 4824499, 410308643, 16983052531
>
>And n such that the number is prime:
>2,4,5 (searched only up to n=8, can’t go further without code). 
>
>Would someone like to try and find more terms?
>
>Thanks,
>
>David.

-- 
Neil Fernandez