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 A057737 #21 Aug 12 2019 02:43:39
%S A057737 7,11,131,147573952589676412931
%N A057737 Primes of the form 2^p + 3, where p is prime.
%C A057737 The next term in the sequence is larger than 2^2741+3 > 10^825. - Philip Sung (philip_sung(AT)hotmail.com), Feb 02 2003
%C A057737 The next term in the sequence is larger than 2^100003+3 > 10^30104. - after _Ryan Propper_, Aug 24 2005
%F A057737 a(n) = 2^A057736(n) + 3. - _Felix Fröhlich_, Aug 09 2019
%t A057737 Select[Table[2^p+3, {p, Prime[Range[67]]}], PrimeQ] (* _Metin Sariyar_, Aug 09 2019 *)
%o A057737 (PARI) forprime(p=1, , my(x=2^p+3); if(ispseudoprime(x), print1(x, ", "))) \\ _Felix Fröhlich_, Aug 09 2019
%Y A057737 Cf. A057736.
%K A057737 nonn
%O A057737 1,1
%A A057737 _G. L. Honaker, Jr._, Oct 29 2000