A089218 vs A052195

[Richard Mathar]

Dear Seqfans,
I would like to ask persons which have accesss to stronger computers as 
myself to try find find
terms: a(9), a(13), a(22) and a(23) in
http://www.research.att.com/~njas/sequences/A139074

a(9)is unknown and doesn't exist up to prime(480) 

a(13) is unknown and doesn't exist up to prime(472)

a(22) is unknown and doesn't exist up to prime(154)

a(23) is unknown and doesn't exist up to prime(130)

My machine is too week. I can send Mathematica procedure to start from the point where I was stop the searching.

Best wishes
Artur


>




Presumably A117216 ought contain all terms of
A047948, A052188, A052189, A052190, A052195, A052197...but I cannot
find  199, 257, 587, 727, 1097 etc in A117216. Where is the error
or the mis-conseption?

Richard




(23+1579!)/23 is probably prime

IMHO, it would be simpler to require p >= n in the definition of a(n) (e.g. 
this would mean a(6)=11, not 3).

Regards,

Drew

On Apr 11 2008, Artur wrote:

>Dear Seqfans,
>I would like to ask persons which have accesss to stronger computers as 
>myself to try find find
>terms: a(9), a(13), a(22) and a(23) in
>http://www.research.att.com/~njas/sequences/A139074
>
>a(9)is unknown and doesn't exist up to prime(480) 
>
>a(13) is unknown and doesn't exist up to prime(472)
>
>a(22) is unknown and doesn't exist up to prime(154)
>
>a(23) is unknown and doesn't exist up to prime(130)
>
> My machine is too week. I can send Mathematica procedure to start from 
> the point where I was stop the searching.
>
>Best wishes
>Artur
>
>
>>
>