%I #11 Apr 04 2017 11:39:17

%S 1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,

%T 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,

%U 0,0,0,-1,-1,-1,-1,-1,-1,-1,0,0,0

%N Inverse of 497th cyclotomic polynomial.

%C Periodic with period length 497. - _Ray Chandler_, Apr 04 2017

%H Ray Chandler, <a href="/A014506/b014506.txt">Table of n, a(n) for n = 0..1000</a>

%H <a href="/index/Rec#order_420">Index entries for linear recurrences with constant coefficients</a>, order 420.

%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_