A014996 Inverse of 987th cyclotomic polynomial.

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

Offset

0,1

Comments

Periodic with period length 987. - Ray Chandler, Apr 07 2017

Links

Ray Chandler, Table of n, a(n) for n = 0..1000

Index entries for periodic sequences, period 987.

Index entries for linear recurrences with constant coefficients, order 552.

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[987, x], {x, 0, 120}], x] (* Harvey P. Dale, Sep 30 2017 *)

Prog

(PARI) first(n)=Vec(1/polcyclo(987)+O(x^(n+1))) \\ Charles R Greathouse IV, Jun 01 2026

Crossrefs

Sequence in context: A015248 A015122 A016235 * A015983 A014912 A015815

Adjacent sequences: A014993 A014994 A014995 * A014997 A014998 A014999

Keyword

sign,easy,changed

Author

Simon Plouffe

Status

approved