A292004 Primes of the form Phi(k, -3), where Phi is the cyclotomic polynomial.

7, 61, 13, 547, 73, 398581, 1093, 757, 23535794707, 6481, 797161, 4561, 374857981681, 530713, 42521761, 368089, 82064241848634269407, 47763361, 105919308797935444986721, 2413941289, 282429005041, 56495392933101222275861053369, 150094634909578633

Offset

1,1

Links

Robert Price, Table of n, a(n) for n = 1..38

Yves Gallot, Cyclotomic polynomials and prime numbers

Index entries for cyclotomic polynomials,values at X

Mathematica

Select[Table[Cyclotomic[k, -3], {k, 0, 100}], PrimeQ[#] &]

Crossrefs

Cf. A138927.

Sequence in context: A316124 A358323 A156545 * A157871 A043085 A079672

Adjacent sequences: A292001 A292002 A292003 * A292005 A292006 A292007

Keyword

nonn

Author

Robert Price, Sep 07 2017

Status

approved