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Inverse of 427th cyclotomic polynomial.
1

%I #13 Oct 17 2024 12:01:31

%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,-1,-1,-1,-1,-1,

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

%N Inverse of 427th cyclotomic polynomial.

%C Periodic with period length 427. - _Ray Chandler_, Apr 04 2017

%H Ray Chandler, <a href="/A014436/b014436.txt">Table of n, a(n) for n = 0..1000</a>

%H <a href="/index/Rec#order_360">Index entries for linear recurrences with constant coefficients</a>, order 360.

%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[427,x],{x,0,120}],x,120] (* _Harvey P. Dale_, Oct 17 2024 *)

%K sign

%O 0,1

%A _Simon Plouffe_