%I #11 Apr 06 2017 10:27:41
%S 1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1,0,0,1,-1,1,-1,1,-1,1,-1,1,
%T -1,1,-1,1,-1,1,-1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
%U 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
%N Inverse of 646th cyclotomic polynomial.
%C Periodic with period length 646. - _Ray Chandler_, Apr 06 2017
%H Ray Chandler, <a href="/A014655/b014655.txt">Table of n, a(n) for n = 0..1000</a>
%H <a href="/index/Rec#order_288">Index entries for linear recurrences with constant coefficients</a>, order 288.
%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);
%K sign
%O 0,1
%A _Simon Plouffe_