login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

Inverse of 938th cyclotomic polynomial.
1

%I #13 Apr 07 2017 10:29:14

%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,

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

%N Inverse of 938th cyclotomic polynomial.

%C Periodic with period length 938. - _Ray Chandler_, Apr 07 2017

%H Ray Chandler, <a href="/A014947/b014947.txt">Table of n, a(n) for n = 0..1000</a>

%H <a href="/index/Rec#order_396">Index entries for linear recurrences with constant coefficients</a>, order 396.

%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 Join[CoefficientList[Series[1/Cyclotomic[938,x],{x,0,74}],x],{0,0,0,0,0,0,0}] (* _Harvey P. Dale_, Jan 23 2015 *)

%K sign

%O 0,1

%A _Simon Plouffe_