A020508 - OEIS

A020508

Cyclotomic polynomials at x=-9.

-9, -10, -8, 73, 82, 5905, 91, 478297, 6562, 530713, 7381, 3138105961, 6481, 254186582833, 597871, 47763361, 43046722, 1667718169966657, 532171, 135085171767299209, 42521761, 313380653041, 3922632451

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OFFSET

0,1

LINKS

Table of n, a(n) for n=0..22.

Index entries for cyclotomic polynomials, values at X

MAPLE

with(numtheory, cyclotomic); f := n->subs(x=-9, cyclotomic(n, x)); seq(f(i), i=0..64);

MATHEMATICA

Join[{-9}, Table[Cyclotomic[n, -9], {n, 1, 22}]] (* Jean-François Alcover, Sep 09 2017 *)

CROSSREFS

Sequence in context: A167691 A107434 A334681 * A158001 A157763 A010735

Adjacent sequences: A020505 A020506 A020507 * A020509 A020510 A020511

KEYWORD

sign

AUTHOR

Simon Plouffe

STATUS

approved