[seqfan] Re: New sequence

Claudio Meller claudiomeller at gmail.com
Wed Apr 5 22:48:08 CEST 2017


Because almost one E+p(i) is prime
For
10 10+3
14  14+3
16  16+3
18  18+5
For
28 = 5+23 = 11+17 and 28+5, 28+23, 28+11 and 28+17 are composite

2017-04-05 17:14 GMT-03:00 Hans Havermann <gladhobo at bell.net>:

> >> 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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>



-- 
Claudio Meller
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