A015907 Inverse of 1898th cyclotomic polynomial.

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

Offset

0,1

Comments

Periodic with period length 1898. - Ray Chandler, Apr 07 2017

Links

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

Index entries for periodic sequences, period 1898.

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);

Prog

(PARI) first(n)=Vec(1/polcyclo(1898)+O(x^(n+1))) \\ Charles R Greathouse IV, Jun 01 2026

Crossrefs

Sequence in context: A015036 A016063 A014958 * A014932 A015855 A014880

Adjacent sequences: A015904 A015905 A015906 * A015908 A015909 A015910

Keyword

sign,easy,changed

Author

Simon Plouffe

Status

approved