[seqfan] Re: In the vein of 103314

[Max Alekseyev]

They all must be distinct as otherwise the n-th primitive root would be a
zero of a polynomial of degree n-1.
Hence, there are binomial(k+n-1,n-1) distinct values of k-term sums of nth
roots of 1, for any k>=1.

Regards,
Max

On Tue, Dec 19, 2017 at 4:24 PM, David Wilson <davidwwilson at comcast.net>
wrote:

> How many distinct values are taken on by a sum of n nth roots of 1?
>
>
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