A113481 Numbers n such that 59^n + 2 is prime.

0, 1, 27, 45, 75

Offset

1,3

Comments

a(6) > 2*10^5. - Robert Price, Mar 21 2015

Links

Table of n, a(n) for n=1..5.

Mathematica

For[n=0, n<50, n++, If[PrimeQ[59^n+2], Print[n]]] (* Stefan Steinerberger, Feb 10 2006 *)
Select[Range[0, 1000], PrimeQ[59^# + 2] &] (* Vincenzo Librandi, Mar 22 2015 *)

Prog

(PARI) forstep(n=1, 1000, 2, y=59^n+2; if(ispseudoprime(y), print1(n", ")))
(Magma) [n: n in [0..100] | IsPrime( 59^n + 2)]; // Vincenzo Librandi, Mar 22 2015

Crossrefs

Sequence in context: A046316 A046373 A228057 * A328897 A369979 A039325

Adjacent sequences: A113478 A113479 A113480 * A113482 A113483 A113484

Keyword

nonn

Author

Cino Hilliard, Jan 09 2006

Status

approved