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A015862 Inverse of 1853rd cyclotomic polynomial. 1

%I

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

%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 0,0,0,0,0,0,0,0,0,0,0,0,0

%N Inverse of 1853rd cyclotomic polynomial.

%C Periodic with period length 1853. - _Ray Chandler_, Apr 07 2017

%H Ray Chandler, <a href="/A015862/b015862.txt">Table of n, a(n) for n = 0..2000</a>

%H <a href="/index/Rec#order_1728">Index entries for linear recurrences with constant coefficients</a>, order 1728.

%H <a href="/index/Pol#poly_cyclo_inv">Index to sequences related to inverse of cyclotomic polynomials</a>

%F a(n) = 1 if 0 <= (n mod 1853) <= 16, -1 if 109 <= (n mod 1853) <= 125, 0 otherwise. - _Robert Israel_, Dec 01 2016

%p with(numtheory,cyclotomic); c := n->series(1/cyclotomic(n,x),x,80);

%K sign

%O 0,1

%A _Simon Plouffe_

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Last modified May 28 17:37 EDT 2020. Contains 334684 sequences. (Running on oeis4.)