[seqfan] Re: Sequence of the sum of primes = prime but with a twist.
Frank Adams-Watters
franktaw at netscape.net
Tue Sep 30 23:29:44 CEST 2014
You have to exclude 2 from the sequence. Otherwise, the first sum is 2,
that's a prime, so we leave it out. Now the next sum is 3, etc. You
wind up with all the primes.
A note should be included that 2 is to be skipped.
Franklin T. Adams-Watters
-----Original Message-----
From: Daniel Joyce <hlauk.h.bogart at gmail.com>
To: Sequence Fanatics Discussion list <seqfan at list.seqfan.eu>
Sent: Tue, Sep 30, 2014 4:25 pm
Subject: [seqfan] Re: Sequence of the sum of primes = prime but with a
twist.
Neil,
I am not sure if the 2 belongs as the start of this sequence.
After this gets resolved and I can produce a larger number of
terms I will submit it.
Thanks,
Dan
On Tue, Sep 30, 2014 at 4:22 PM, Neil Sloane <njasloane at gmail.com>
wrote:
> So we start with the primes
> 2 3 5 7 11 13 17 19 ...
> and form the partial sums
> 2 5 12 ...
> but whenever we hit a prime, we remove it from the
> list of primes. The primes that are removed are
> 5,23,53,101,359,487,631,1669...
> That's cute - will you please submit it?
>
> (Shouldn't it begin with 2 ? Normally the first partial sum is the
first
> term)
>
> Neil
>
>
>
>
> On Tue, Sep 30, 2014 at 4:02 PM, Daniel Joyce
<hlauk.h.bogart at gmail.com>
> wrote:
>
> > Once the sum of primes = prime then that prime is eliminated for
> > future summation of consecutive primes.
> >
> >
> > 5,23,53,101,359,487,631,1669...
> >
> >
> > Dan
> >
> > _______________________________________________
> >
> > Seqfan Mailing list - http://list.seqfan.eu/
> >
>
>
>
> --
> Dear Friends, I have now retired from AT&T. New coordinates:
>
> Neil J. A. Sloane, President, OEIS Foundation
> 11 South Adelaide Avenue, Highland Park, NJ 08904, USA.
> Also Visiting Scientist, Math. Dept., Rutgers University, Piscataway,
NJ.
> Phone: 732 828 6098; home page: http://NeilSloane.com
> Email: njasloane at gmail.com
>
> _______________________________________________
>
> Seqfan Mailing list - http://list.seqfan.eu/
>
_______________________________________________
Seqfan Mailing list - http://list.seqfan.eu/
More information about the SeqFan
mailing list