A292009 Primes of the form Phi(k, 5), where Phi is the cyclotomic polynomial.

31, 19531, 521, 12207031, 601, 305175781, 390001, 234750601, 177635683940025046467781066894531, 152587500001, 227376585863531112677002031251, 59509429687890001, 11735415506748076408140121, 9080418348371887359375390001, 60081451169922001

Offset: 1

Author

Robert Price, Sep 07 2017

Keywords

• nonn

Links

• Robert Price, Table of n, a(n) for n = 1..32
• Yves Gallot, Cyclotomic polynomials and prime numbers
• Index entries for cyclotomic polynomials,values at X

Crossrefs

Cf. A138935.

Programs

Mathematica

Select[Table[Cyclotomic[k,5], {k, 0, 100}], PrimeQ[#] &]