A215437 Primes of form 5^k + k^5 - 1.

5, 367, 2012173, 1221074417, 7450580596938177031

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..7

Mathematica

Select[Table[5^n + n^5 - 1, {n, 0, 500}], PrimeQ ]

Prog

(Magma) [ a: n in [0..250] | IsPrime(a) where a is 5^n + n^5 - 1 ]

Crossrefs

Sequence in context: A234311 A237430 A160193 * A098038 A354831 A072172

Adjacent sequences: A215434 A215435 A215436 * A215438 A215439 A215440

Keyword

nonn

Author

Vincenzo Librandi, Sep 03 2012

Status

approved