A014750 - OEIS

%I #19 May 30 2026 01:10:07

%S 1,-1,0,1,-1,0,1,-1,0,1,-1,0,1,0,-1,1,0,-1,1,1,-2,1,1,-2,1,1,-1,0,1,

%T -1,0,1,0,-1,1,0,-1,1,1,-2,1,1,-2,1,1,-1,0,1,-1,0,1,0,-1,1,0,-1,1,0,

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

%N Inverse of 741st cyclotomic polynomial.

%C Periodic with period length 741. - _Ray Chandler_, Apr 06 2017

%H Ray Chandler, <a href="/A014750/b014750.txt">Table of n, a(n) for n = 0..1000</a>

%H <a href="/index/Per#periodic">Index entries for periodic sequences</a>.

%H <a href="/index/Rec#order_432">Index entries for linear recurrences with constant coefficients</a>, order 432.

%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[741,x],{x,0,250}],x] (* _Harvey P. Dale_, Sep 27 2018 *)

%o (PARI) Vec(1/polcyclo(741)+O(x^99)) \\ _Charles R Greathouse IV_, May 30 2026

%K sign,easy

%O 0,21

%A _Simon Plouffe_