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

0, 1, 27, 45, 75

Offset: 1

Author

Cino Hilliard, Jan 09 2006

Keywords

• nonn

Comments

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

Programs

Magma

[n: n in [0..100] | IsPrime( 59^n + 2)]; // Vincenzo Librandi, Mar 22 2015

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 *)

PARI

forstep(n=1,1000,2,y=59^n+2;if(ispseudoprime(y),print1(n",")))