[seqfan] Re: Biprimes of K

L. Edson Jeffery lejeffery2 at gmail.com
Wed Sep 17 09:21:29 CEST 2014


Bob,

Thank you for creating the new b-file. That was fast!

Ed Jeffery

On Wed, Sep 17, 2014 at 1:12 AM, Robert G. Wilson v <rgwv at rgwv.com> wrote:

> Ed,
>
>         I have extended A026242 to 10000 terms. If you need more, they are
> easy to compute. A million terms would be easy enough.
>
> Bob.
>
> -----Original Message-----
> From: SeqFan [mailto:seqfan-bounces at list.seqfan.eu] On Behalf Of L. Edson
> Jeffery
> Sent: Tuesday, September 16, 2014 10:03 PM
> To: seqfan at list.seqfan.eu
> Subject: [seqfan] Re: Biprimes of K
>
> Éric,
>
>
> Very nice, but we need more terms for A026242. I hope someone will take
> time to extend the b-file.
>
> If you drop the two ones and let K = {2,3,2,4,3,5,...} with offset 1, then
> the sequence of indices for your BIP = 2,3,4,5,8,15,... (non-underlined
> elements of K) starts with 1,2,4,6,10,22 which is interesting as well and
> not in OEIS (unless it happens to be A005194 which is doubtful).
>
> Ed Jeffery
>
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