[seqfan] Re: Primes with n prime substrings

zak seidov zakseidov at yahoo.com
Wed Apr 7 14:34:01 CEST 2010


But a(4)=523 has no '7' (4th prime) as substring(?)
Zak




----- Original Message ----
From: Charles Greathouse <charles.greathouse at case.edu>
To: Sequence Fanatics Discussion list <seqfan at list.seqfan.eu>
Sent: Wed, April 7, 2010 1:59:54 PM
Subject: [seqfan] Re: Primes with n prime substrings

Why 2,23,523,2357 and not 2,23,523,523?

Charles Greathouse
Analyst/Programmer
Case Western Reserve University

On Wed, Apr 7, 2010 at 4:11 AM, zak seidov <zakseidov at yahoo.com> wrote:
> 2,23,523,2357,112573,511327,1135217,1113251719,11171323519,11113171952329,...
>
> a(n) = the smallest prime with at least n first primes as its substrings.
>
> Anyone may wish to check/extend/edit/submit this?
>
> Zak
>
>
>
>
>
> _______________________________________________
>
> Seqfan Mailing list - http://list.seqfan.eu/
>


_______________________________________________

Seqfan Mailing list - http://list.seqfan.eu/



      




More information about the SeqFan mailing list