A015918 Inverse of 1909th cyclotomic polynomial.

1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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

Offset: 0

Author

Simon Plouffe

Keywords

• sign

Comments

Periodic with period length 1909. - 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 1804.
• Index to sequences related to inverse of cyclotomic polynomials

Programs

Maple

with(numtheory,cyclotomic); c := n->series(1/cyclotomic(n,x),x,80);

PARI

Vec(1/polcyclo(1909)+O(x^99)) \\ Charles R Greathouse IV, Mar 24 2014