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 A014268 Inverse of 259th cyclotomic polynomial. 1

%I

%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,-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,

%U 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0

%N Inverse of 259th cyclotomic polynomial.

%C Periodic with period length 259. - _Ray Chandler_, Apr 03 2017

%H Vincenzo Librandi, <a href="/A014268/b014268.txt">Table of n, a(n) for n = 0..1000</a>

%H <a href="/index/Rec#order_216">Index entries for linear recurrences with constant coefficients</a>, order 216.

%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[259, x], {x, 0, 200}], x] (* _Vincenzo Librandi_, Apr 08 2014 *)

%o (MAGMA) t:=259; u:=1; m:=u*t+2; R<x>:=PowerSeriesRing(Integers(), m); Coefficients(R!(1/CyclotomicPolynomial(t))); // _Vincenzo Librandi_, Apr 08 2014

%o (PARI) Vec(O(x^199)+1/polcyclo(259)) \\ _M. F. Hasler_, Feb 16 2018

%Y Column 259 of A291137.

%K sign,easy

%O 0,1

%A _Simon Plouffe_

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Last modified August 26 05:50 EDT 2019. Contains 326330 sequences. (Running on oeis4.)