A273552 Primes of the form 2^(2^n) + 267.

269, 271, 283, 523, 4294967563

Offset: 1

Author

Vincenzo Librandi, Jun 01 2016

Keywords

• nonn

Comments

Terms given correspond to n = 0, 1, 2, 3, and 5.

Next term >= 2^2^29 + 267. - Charles R Greathouse IV, Jun 08 2016

Crossrefs

Cf. similar sequences listed in A273547.

Programs

Magma

[a: n in [0..16] | IsPrime(a) where a is 2^(2^n)+267];

Mathematica

Select[Table[2^(2^n) + 267, {n, 0, 15}], PrimeQ]

PARI

for(n=0, 5, if(ispseudoprime(t=2^2^n+267), print1(t", "))) \\ Charles R Greathouse IV, Jun 08 2016