Is True

[Artur]

%S A126243 5,11,11,41,29,37,53,67,131,71,97,139,127,727,193,157,191,211
%N A126243 Least prime number such that is arithmetic mean of n-th prime  
bigger and n-th prime smaller
%Y A126243 A006562, A119381, A126238-A126247
%O A126243 1
%K A126243 ,nonn,
%A A126243 Artur Jasinski (grafix at csl.pl), Dec 21 2006

Dnia 21-12-2006 o 13:29:49 zak seidov <zakseidov at yahoo.com> napisał(a):

> Yes, it's true:
> Arithmetic mean of two succesive primes
> is some integer number between two SUCCESSYVE primes,
> and by definition can't be prime.
>
> Happy 2007, Zak
>
> --- Artur <grafix at csl.pl> wrote:
>
>> Dear Seqfans,
>> Who know that is true following:
>> "Arithmetic mean of two succesive primes isn't prime
>> number"
>> If this is true which is proof of these (or where is
>> publish)?
>>
>> Mery Christmas nad Happy New Year 2007
>> ARTUR
>>
>>
>
>
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