A273550 Primes of the form 2^(2^n) + 177.

179, 181, 193, 433, 65713

Offset

1,1

Comments

Terms given correspond to n = 0, 1, 2, 3, and 4.

Next term >= 2^2^23 + 177. - Charles R Greathouse IV, Jun 08 2016

Links

Table of n, a(n) for n=1..5.

Mathematica

Select[Table[2^(2^n) + 177, {n, 0, 15}], PrimeQ]

Prog

(Magma) [a: n in [0..15] | IsPrime(a) where a is 2^(2^n)+177];
(PARI) for(n=0, 4, if(ispseudoprime(t=2^2^n+177), print1(t", "))) \\ Charles R Greathouse IV, Jun 08 2016

Crossrefs

Cf. similar sequences listed in A273547.

Sequence in context: A163730 A157842 A323742 * A053017 A140026 A108384

Adjacent sequences: A273547 A273548 A273549 * A273551 A273552 A273553

Keyword

nonn

Author

Vincenzo Librandi, Jun 01 2016

Status

approved