A014219 Inverse of 210th cyclotomic polynomial.

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

Offset

0,1

Comments

Periodic with period length 210. - Ray Chandler, Apr 03 2017

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

Index entries for linear recurrences with constant coefficients, signature (1, -1, 0, 0, -1, 1, -2, 1, -1, 0, 0, -1, 1, -1, 1, -1, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, -1, 1, -1, 1, -1, 0, 0, -1, 1, -2, 1, -1, 0, 0, -1, 1, -1).

Index to sequences related to inverse of cyclotomic polynomials

Maple

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

Mathematica

CoefficientList[Series[1/Cyclotomic[210, x], {x, 0, 200}], x] (* Vincenzo Librandi, Apr 06 2014 *)

Crossrefs

Cf. similar sequences listed in A240328, A240467.

Sequence in context: A267621 A374039 A014114 * A065828 A341603 A190897

Adjacent sequences: A014216 A014217 A014218 * A014220 A014221 A014222

Keyword

sign,easy

Author

Simon Plouffe

Status

approved