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A014069
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Inverse of 60th cyclotomic polynomial.
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3
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1, 0, -1, 0, 1, 0, 0, 0, 0, 0, 1, 0, -1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 0, 1, 0, -1, 0, 0, 0, 0, 0, -1, 0, 1, 0, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, -1, 0, 1, 0, 0, 0, 0, 0, 1, 0, -1, 0, 1, 0, 0, 0, 0, 0, 0
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OFFSET
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0,1
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COMMENTS
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Periodic with period length 60. - Ray Chandler, Apr 03 2017
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LINKS
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Vincenzo Librandi, Table of n, a(n) for n = 0..1000
Index entries for linear recurrences with constant coefficients, signature (0, -1, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, -1, 0, -1).
Index to sequences related to inverse of cyclotomic polynomials
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MAPLE
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with(numtheory, cyclotomic); c := n->series(1/cyclotomic(n, x), x, 80);
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MATHEMATICA
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CoefficientList[Series[1/Cyclotomic[60, x], {x, 0, 200}], x] (* Vincenzo Librandi, Apr 05 2014 *)
LinearRecurrence[{0, -1, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, -1, 0, -1}, {1, 0, -1, 0, 1, 0, 0, 0, 0, 0, 1, 0, -1, 0, 1, 0}, 81] (* Ray Chandler, Sep 15 2015 *)
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CROSSREFS
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Cf. similar sequences listed in A240328.
Sequence in context: A014093 A089806 A274719 * A154388 A285136 A029694
Adjacent sequences: A014066 A014067 A014068 * A014070 A014071 A014072
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KEYWORD
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sign,easy
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AUTHOR
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Simon Plouffe
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STATUS
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approved
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