A014429 - OEIS

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A014429

Inverse of 420th cyclotomic polynomial.

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

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OFFSET

0,1

COMMENTS

Periodic with period length 420. - Ray Chandler, Apr 04 2017

LINKS

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

Index entries for linear recurrences with constant coefficients, signature (0, 1, 0, -1, 0, 0, 0, 0, 0, -1, 0, 1, 0, -2, 0, 1, 0, -1, 0, 0, 0, 0, 0, -1, 0, 1, 0, -1, 0, 1, 0, -1, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, -1, 0, 1, 0, -1, 0, 1, 0, -1, 0, 0, 0, 0, 0, -1, 0, 1, 0, -2, 0, 1, 0, -1, 0, 0, 0, 0, 0, -1, 0, 1, 0, -1).

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[420, x], {x, 0, 120}], x] (* Harvey P. Dale, Jul 24 2017 *)

CROSSREFS

Sequence in context: A016331 A285142 A267525 * A354036 A284948 A011637

Adjacent sequences: A014426 A014427 A014428 * A014430 A014431 A014432

KEYWORD

sign

AUTHOR

Simon Plouffe

STATUS

approved