[seqfan] Re: Primes with n prime substrings

[Graeme McRae]

Because 23 isn't one of the first 4 primes.

--Graeme McRae,
Palmdale, CA,
Sent from my iPhone

On Apr 7, 2010, at 4:59 AM, Charles Greathouse <charles.greathouse at case.edu 
 > wrote:

> 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:
>> 2,2 
>> 3,5 
>> 23,2357,112573,511327,1135217,1113251719,11171323519,11113171952329, 
>> ...
>>
>> a(n) = the smallest prime with at least n first primes as its  
>> substrings.
>>
>> Anyone may wish to check/extend/edit/submit this?
>>
>> Zak
>>
>>
>>
>>
>>
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