A160029 Primes of the form 2^(2^k)+51.

53, 67, 307, 65587, 18446744073709551667, 340282366920938463463374607431768211507

Offset: 1

Author

Cino Hilliard, Apr 30 2009

Keywords

• nonn

Comments

Generated by k = 0, 2, 3, 4, 6, 7,...

a(7) > 2^(2^23)+51. - Martin Møller Skarbiniks Pedersen, May 31 2016

Crossrefs

Cf. A019434, A160027 - A160030.

Programs

Magma

[a: n in [0..15] | IsPrime(a) where a is 2^(2^n)+51]; // Vincenzo Librandi, May 31 2016

Mathematica

Select[Table[2^(2^n) + 51, {n, 0, 10}], PrimeQ] (* Vincenzo Librandi, May 31 2016 *)

PARI

g(n,m) = for(x=0,n,y=2^(2^x)+m;if(ispseudoprime(y),print1(y",")))