[seqfan] Re: New sequence

Hans Havermann gladhobo at bell.net
Wed Apr 5 22:14:56 CEST 2017


>> So :  E = p1 + p2
>> The question is, which even number plus p1 or p2 is not a prime number?
> 
> Claudio, how are you deciding E = p1 + p2 = p3 + p4 = ... ?

"I consider all pn (p1, p2, p3, etc)"

So the question is, which even number plus p1 or p2 or p3 or p4 or ... is not a prime number?

10 = 3 +  7 = 5 +  5;   10 + p3 or 10 + p4 is not prime.
14 = 3 + 11 = 7 +  7;   14 + p2 or 14 + p3 or 14 + p4 is not prime.
16 = 3 + 13 = 5 + 11;   16 + p3 or 16 + p4 is not prime.
18 = 5 + 13 = 7 + 11;   18 + p3 is not prime.
...

But you do not include 10, 14, 16, 18 in your sequence. Why not?


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