A258805 - OEIS

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A258805

Primes of the form n^8 + 1.

2, 257, 65537, 37588592026706177, 92170395205042177, 147578905600000001, 284936905588473857, 3503536769037500417, 11007531417600000001, 11763130845074473217, 47330370277129322497, 50024641296100000001, 76872571987558646017, 416806419029812551937

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OFFSET

1,1

LINKS

Charles R Greathouse IV, Table of n, a(n) for n = 1..10000

FORMULA

a(n) = A060890(A006314(n)). - Michel Marcus, Jun 11 2015

MATHEMATICA

Select[Range[500]^8 + 1, PrimeQ]

PROG

(Magma) [a: n in [1..500] | IsPrime(a) where a is n^8+1];

(PARI) is(n)=ispower(n-1, 8) && isprime(n) \\ Charles R Greathouse IV, Jun 11 2015

CROSSREFS

Subsequence of A002496, A037896.

Cf. A006314 (associated n), A060890.

Sequence in context: A085316 A006686 A100269 * A327777 A196288 A128697

Adjacent sequences: A258802 A258803 A258804 * A258806 A258807 A258808

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Jun 11 2015

STATUS

approved