[seqfan] Re: In the vein of 103314
maxale at gmail.com
Wed Dec 20 16:42:07 CET 2017
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.
On Tue, Dec 19, 2017 at 4:24 PM, David Wilson <davidwwilson at comcast.net>
> How many distinct values are taken on by a sum of n nth roots of 1?
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