[seqfan] Re: magma calculator

israel at math.ubc.ca israel at math.ubc.ca
Wed Feb 25 00:30:45 CET 2015


x^27 + 27 is divisible by x^9 + 3, x^64 + 64 is divisible by x^32-4*x^16+8.

Cheers,
Robert

On Feb 24 2015, юрий герасимов 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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