

A124272


Primes in A124271, or primes of the form Sum_{i=1..n} (prime(i)^n  1)/(prime(i)  1).


1




OFFSET

1,1


COMMENTS

The corresponding n are 2, 8, 14, ...


LINKS

Table of n, a(n) for n=1..3.


EXAMPLE

7 is a term because A124271(2) = 7 is prime.


MATHEMATICA

Do[f=Sum[(Prime[i]^n1)/(Prime[i]1), {i, 1, n}]; If[PrimeQ[f], Print[{n, f}]], {n, 1, 100}]


CROSSREFS

Cf. A124271.
Sequence in context: A116257 A075984 A109300 * A128820 A067485 A180225
Adjacent sequences: A124269 A124270 A124271 * A124273 A124274 A124275


KEYWORD

bref,hard,more,nonn


AUTHOR

Alexander Adamchuk, Oct 23 2006


STATUS

approved



