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%I #13 May 13 2019 08:53:22
%S 1,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,
%T 0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
%U 0,0,0,0,0,0,0,0,0,0,0,0,0
%N Inverse of 637th cyclotomic polynomial.
%C Periodic with period length 637. - _Ray Chandler_, Apr 06 2017
%H Ray Chandler, <a href="/A014646/b014646.txt">Table of n, a(n) for n = 0..1000</a>
%H <a href="/index/Rec#order_504">Index entries for linear recurrences with constant coefficients</a>, order 504.
%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[637,x],{x,0,120}],x] (* _Harvey P. Dale_, May 13 2019 *)
%K sign
%O 0,1
%A _Simon Plouffe_
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