A015862 - OEIS

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A015862

Inverse of 1853rd cyclotomic polynomial.

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, 0, 0, 0, 0, 0, 0

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OFFSET

0,1

COMMENTS

Periodic with period length 1853. - 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 1728.

Index to sequences related to inverse of cyclotomic polynomials

FORMULA

a(n) = 1 if 0 <= (n mod 1853) <= 16, -1 if 109 <= (n mod 1853) <= 125, 0 otherwise. - Robert Israel, Dec 01 2016

MAPLE

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

CROSSREFS

Sequence in context: A015726 A015760 A015828 * A015930 A016168 A016236

Adjacent sequences: A015859 A015860 A015861 * A015863 A015864 A015865

KEYWORD

sign

AUTHOR

Simon Plouffe

STATUS

approved