A240331 Inverse of 47th 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, 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

Offset

0

Comments

Periodic with period length 47. - 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).

Index to sequences related to inverse of cyclotomic polynomials

Mathematica

CoefficientList[Series[1/Cyclotomic[47, x], {x, 0, 100}], x]

Prog

(Magma) &cat[[n le 2 select -(-1)^(n) else 0: n in [1..47]]: m in [1..4]];

Crossrefs

Cf. similar sequences listed in A240328.

Sequence in context: A240350 A240349 A240348 * A240330 A240329 A240328

Adjacent sequences: A240328 A240329 A240330 * A240332 A240333 A240334

Keyword

sign,easy

Author

Vincenzo Librandi, Apr 04 2014

Status

approved