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%I A015021 #11 Apr 07 2017 10:51:16
%S A015021 1,0,-1,0,1,0,-1,0,1,0,-1,0,1,0,-1,0,1,0,-1,0,1,0,0,0,0,0,0,0,0,0,0,0,
%T A015021 0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,-1,0,1,0,-1,0,1,0,-1,0,1,0,-1,0,1,0,
%U A015021 -1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0
%N A015021 Inverse of 1012th cyclotomic polynomial.
%C A015021 Periodic with period length 1012. - _Ray Chandler_, Apr 07 2017
%H A015021 Ray Chandler, <a href="/A015021/b015021.txt">Table of n, a(n) for n = 0..2000</a>
%H A015021 <a href="/index/Rec#order_440">Index entries for linear recurrences with constant coefficients</a>, order 440.
%H A015021 <a href="/index/Pol#poly_cyclo_inv">Index to sequences related to inverse of cyclotomic polynomials</a>
%p A015021 with(numtheory,cyclotomic); c := n->series(1/cyclotomic(n,x),x,80);
%K A015021 sign
%O A015021 0,1
%A A015021 _Simon Plouffe_

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