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A292008
Primes of the form Phi(k, 4), where Phi is the cyclotomic polynomial.
1
3, 5, 17, 13, 257, 241, 65537, 61681, 15790321, 4278255361, 4562284561, 291280009243618888211558641, 18446744069414584321, 78919881726271091143763623681, 84179842077657862011867889681, 20988936657440586486151264256610222593863921
OFFSET
1,1
MATHEMATICA
Select[Table[Cyclotomic[k, 4], {k, 0, 100}], PrimeQ[#] &]
CROSSREFS
Cf. A138934.
Sequence in context: A085418 A339944 A359395 * A139427 A360802 A365475
KEYWORD
nonn
AUTHOR
Robert Price, Sep 07 2017
STATUS
approved