A240352 - OEIS

A240352

Inverse of 67th cyclotomic polynomial.

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

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OFFSET

COMMENTS

Periodic with period length 67. - Ray Chandler, Apr 03 2017

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

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

Index to sequences related to inverse of cyclotomic polynomials

MATHEMATICA

CoefficientList[Series[1/Cyclotomic[67, x], {x, 0, 200}], x]

PROG

(Magma) &cat[[n le 2 select -(-1)^(n) else 0: n in [1..67]]: m in [1..4]];

CROSSREFS

Cf. similar sequences listed in A240328.

Sequence in context: A154955 A240356 A240354 * A240350 A240349 A240348

Adjacent sequences: A240349 A240350 A240351 * A240353 A240354 A240355

KEYWORD

sign,easy

AUTHOR

Vincenzo Librandi, Apr 04 2014

STATUS

approved