A273549 Primes of the form 2^(2^n) + 165.

167, 181, 421, 65701, 340282366920938463463374607431768211621

Offset: 1

Author

Vincenzo Librandi, Jun 01 2016

Keywords

• nonn

Comments

Terms given correspond to n = 0, 2, 3, 4 and 7.

Next term >= 2^2^25 + 165. - Charles R Greathouse IV, Jun 07 2016

Crossrefs

Cf. similar sequences listed in A273547.

Programs

Magma

[a: n in [0..16] | IsPrime(a) where a is 2^(2^n)+165];

Mathematica

Select[Table[2^(2^n) + 165, {n, 0, 15}], PrimeQ]

PARI

for(n=0,7, if(ispseudoprime(t=2^2^n+165), print1(t", "))) \\ Charles R Greathouse IV, Jun 08 2016