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A014093
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Inverse of 84th cyclotomic polynomial.
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3
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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, 0, 0, 0, 0, 0, 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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 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 84. - 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, 0, 0, -1, 0, 0, 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[84, x], {x, 0, 200}], x] (* Vincenzo Librandi, Apr 06 2014 *)
LinearRecurrence[{0, -1, 0, 0, 0, 1, 0, 1, 0, 0, 0, -1, 0, 0, 0, 1, 0, 1, 0, 0, 0, -1, 0, -1}, {1, 0, -1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, -1, 0, 1, 0, 0, 0, 0, 0}, 81] (* Ray Chandler, Sep 15 2015 *)
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CROSSREFS
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Cf. similar sequences listed in A240328 and A240465.
Sequence in context: A267587 A014165 A014141 * A089806 A274719 A014069
Adjacent sequences: A014090 A014091 A014092 * A014094 A014095 A014096
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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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