This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A273550 #9 Sep 08 2022 08:46:16
%S A273550 179,181,193,433,65713
%N A273550 Primes of the form 2^(2^n) + 177.
%C A273550 Terms given correspond to n = 0, 1, 2, 3, and 4.
%C A273550 Next term >= 2^2^23 + 177. - _Charles R Greathouse IV_, Jun 08 2016
%t A273550 Select[Table[2^(2^n) + 177, {n, 0, 15}], PrimeQ]
%o A273550 (Magma) [a: n in [0..15] | IsPrime(a) where a is 2^(2^n)+177];
%o A273550 (PARI) for(n=0, 4, if(ispseudoprime(t=2^2^n+177), print1(t", "))) \\ _Charles R Greathouse IV_, Jun 08 2016
%Y A273550 Cf. similar sequences listed in A273547.
%K A273550 nonn
%O A273550 1,1
%A A273550 _Vincenzo Librandi_, Jun 01 2016