A292008 Primes of the form Phi(k, 4), where Phi is the cyclotomic polynomial.

3, 5, 17, 13, 257, 241, 65537, 61681, 15790321, 4278255361, 4562284561, 291280009243618888211558641, 18446744069414584321, 78919881726271091143763623681, 84179842077657862011867889681, 20988936657440586486151264256610222593863921

Offset

1,1

Links

Robert Price, Table of n, a(n) for n = 1..18

Yves Gallot, Cyclotomic polynomials and prime numbers

Index entries for cyclotomic polynomials,values at X

Mathematica

Select[Table[Cyclotomic[k, 4], {k, 0, 100}], PrimeQ[#] &]

Crossrefs

Cf. A138934.

Sequence in context: A085418 A339944 A359395 * A139427 A360802 A365475

Adjacent sequences: A292005 A292006 A292007 * A292009 A292010 A292011

Keyword

nonn

Author

Robert Price, Sep 07 2017

Status

approved