A014218 - OEIS

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A014218

Inverse of 209th cyclotomic polynomial.

2

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

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OFFSET

0,1

COMMENTS

Periodic with period length 209. - 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, order 180.

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[209, x], {x, 0, 200}], x] (* Vincenzo Librandi, Apr 06 2014 *)

CROSSREFS

Cf. similar sequences listed in A240328, A240467.

Sequence in context: A014647 A014262 A014515 * A014427 A014196 A014383

Adjacent sequences: A014215 A014216 A014217 * A014219 A014220 A014221

KEYWORD

sign,easy

AUTHOR

STATUS

approved