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A015681 Inverse of 1672nd cyclotomic polynomial. 1
1, 0, 0, 0, -1, 0, 0, 0, 1, 0, 0, 0, -1, 0, 0, 0, 1, 0, 0, 0, -1, 0, 0, 0, 1, 0, 0, 0, -1, 0, 0, 0, 1, 0, 0, 0, -1, 0, 0, 0, 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, 1, 0, 0, 0, -1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Periodic with period length 1672. - Ray Chandler, Apr 07 2017

LINKS

Ray Chandler, Table of n, a(n) for n = 0..2000

Index entries for linear recurrences with constant coefficients, order 720.

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[1672, x], {x, 0, 120}], x] (* Harvey P. Dale, Dec 21 2015 *)

CROSSREFS

Sequence in context: A014737 A014625 A016033 * A015505 A015153 A015985

Adjacent sequences:  A015678 A015679 A015680 * A015682 A015683 A015684

KEYWORD

sign

AUTHOR

Simon Plouffe

STATUS

approved

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Last modified January 26 20:02 EST 2022. Contains 350599 sequences. (Running on oeis4.)