A215435 Primes of form 3^k + k^3 - 1.

3, 53, 367, 20411, 10301051460877537453973547542467, 7509466514979724803946715958615457

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..11

Mathematica

Select[Table[3^n + n^3 - 1, {n, 0, 500}], PrimeQ ]

Prog

(Magma) [ a: n in [0..250] | IsPrime(a) where a is 3^n + n^3 - 1 ]

Crossrefs

Sequence in context: A216042 A292530 A036941 * A121504 A099665 A173802

Adjacent sequences: A215432 A215433 A215434 * A215436 A215437 A215438

Keyword

nonn

Author

Vincenzo Librandi, Sep 03 2012

Status

approved