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A015956 Inverse of 1947th cyclotomic polynomial. 1
1, -1, 0, 1, -1, 0, 1, -1, 0, 1, -1, 1, 0, -1, 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, 0, 0, 0, 0, 1, -1, 0, 1, -1, 0, 1, -1, 0, 1, -1, 1, 0, -1, 1, 0, -1, 1, 0, -1, 1, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Periodic with period length 1947. - 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 1160.

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[1947, x], {x, 0, 120}], x] (* Harvey P. Dale, Mar 28 2018 *)

CROSSREFS

Sequence in context: A011640 A016220 A016022 * A015758 A015560 A015428

Adjacent sequences:  A015953 A015954 A015955 * A015957 A015958 A015959

KEYWORD

sign

AUTHOR

Simon Plouffe

STATUS

approved

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Last modified May 23 18:45 EDT 2019. Contains 323528 sequences. (Running on oeis4.)