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%I #13 May 22 2020 12:22:46
%S 1,-1,0,0,0,1,-1,0,0,0,1,-1,0,0,0,1,-1,0,0,1,0,-1,0,1,0,0,-1,0,1,0,0,
%T -1,0,1,0,0,-1,0,2,-1,0,-1,1,1,-1,0,0,0,1,-1,0,0,0,1,-1,0,0,1,0,-1,0,
%U 1,0,0,-1,1,0,0,0,0,0,0,0,0,0,0,1,-1,0,0,1
%N Inverse of 2185th cyclotomic polynomial.
%C Periodic with period length 2185. - _Ray Chandler_, Apr 07 2017
%H Ray Chandler, <a href="/A016194/b016194.txt">Table of n, a(n) for n = 0..3000</a>
%H <a href="/index/Rec#order_1584">Index entries for linear recurrences with constant coefficients</a>, order 1584.
%H <a href="/index/Pol#poly_cyclo_inv">Index to sequences related to inverse of cyclotomic polynomials</a>
%p with(numtheory,cyclotomic); c := n->series(1/cyclotomic(n,x),x,80);
%t CoefficientList[Series[1/Cyclotomic[2185,x],{x,0,120}],x] (* _Harvey P. Dale_, May 22 2020 *)
%K sign
%O 0,39
%A _Simon Plouffe_
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