[seqfan] Re: magma calculator

[Olivier Gerard]

Dear Youri,

If you are on seqfan, why don't use the OEIS first to gain more knowledge ?

Look at http://oeis.org/A072883

and you will have the explanation why a(27) and a(64) have no solutions.

A good rule to lookup something in the OEIS is : never assume that your
own conventions about initial terms, offset, meaning of 0 and 1 have been
chosen
by everyone.



Olivier

PS: please next time, find a more appropriate title for your mail. What you
are discussing
is not the magma calculator but a particular computation you did with it.






On Tue, Feb 24, 2015 at 9:41 PM, юрий герасимов <2stepan at rambler.ru> wrote:

>
> Dear SeqFans.
> Magma calculator: a(27) = ? and a(64) = ? if  a(n) = smallest k such that
> k^n + n is prime:
> 1, 0, 0, 1, 0, 1, 0, 3, 2, 1, 0, 1, 0, 417, 2, 1, 0, 1, 0, 81,
> 76, 1, 0, 55, 28, 15, (a(27) = ?), 1, 0, 1, 0, 117, 230, 3, 12, 1, 0, 375,
> 2, 1,
> 0, 1, 0, 25, 218, 1, 0, 7, 100, 993, 28, 1, 0, 13, 252, 183, 226, 1, 0, 1,
> 0, 777, 1294, (a(64) = ?), 1806, ...
>
> Thanks, JSG
>
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