A015985 Inverse of 1976th cyclotomic polynomial.

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

Offset

0,1

Comments

Periodic with period length 1976. - Ray Chandler, Apr 07 2017

Links

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

Index entries for periodic sequences, period 1976.

Index entries for linear recurrences with constant coefficients, order 864.

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[1976, x], {x, 0, 100}], x] (* Harvey P. Dale, Sep 23 2016 *)

Prog

(PARI) first(n)=Vec(1/polcyclo(1976)+O(x^(n+1))) \\ Charles R Greathouse IV, Jun 01 2026

Crossrefs

Sequence in context: A015681 A015505 A015153 * A015777 A014017 A121262

Adjacent sequences: A015982 A015983 A015984 * A015986 A015987 A015988

Keyword

sign,easy,changed

Author

Simon Plouffe

Status

approved