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A020504

Cyclotomic polynomials at x=-5.

-5, -6, -4, 21, 26, 521, 31, 13021, 626, 15501, 781, 8138021, 601, 203450521, 19531, 464881, 390626, 127156575521, 15751, 3178914388021, 375601, 290639881, 12207031, 1986821492513021, 390001, 95336923825001

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OFFSET

0,1

LINKS

Paolo Xausa, Table of n, a(n) for n = 0..1000

Index entries for cyclotomic polynomials, values at X

MAPLE

with(numtheory, cyclotomic); f := n->subs(x=-5, cyclotomic(n, x)); seq(f(i), i=0..64);

MATHEMATICA

Join[{-5}, Cyclotomic[Range[50], -5]] (* Paolo Xausa, Feb 26 2024 *)

CROSSREFS

Sequence in context: A082220 A144522 A371763 * A293009 A011004 A226975

Adjacent sequences: A020501 A020502 A020503 * A020505 A020506 A020507

KEYWORD

sign

AUTHOR

Simon Plouffe

STATUS

approved

URL: https://oeis.org/A020504

⇱ A020504 - OEIS