A273548 - OEIS

%I #11 Sep 08 2022 08:46:16

%S 167,179,419,65699,4294967459

%N Primes of the form 2^(2^n) + 163.

%C Terms given correspond to n = 1, 2, 3, 4 and 5.

%C Next term >= 2^2^34 + 163. - _Charles R Greathouse IV_, Jun 07 2016

%t Select[Table[2^(2^n) + 163, {n, 0, 15}], PrimeQ]

%o (Magma) [a: n in [0..16] | IsPrime(a) where a is 2^(2^n)+163];

%o (PARI) for(n=1,5, if(ispseudoprime(t=2^2^n+163), print1(t", "))) \\ _Charles R Greathouse IV_, Jun 08 2016

%Y Cf. similar sequences listed in A273547.

%K nonn

%O 1,1

%A _Vincenzo Librandi_, Jun 01 2016