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 A172041 #7 Aug 27 2023 12:55:38
%S A172041 5,29,536870909,
%T A172041 13803492693581127574869511724554050904902217944340773110325048447598589
%N A172041 Primes of the form 2^p-3 with p also prime.
%C A172041 Next two terms are 2^42689-3 and 2^69337-3.
%C A172041 Subsequence of A050415.
%C A172041 Corresponding p are the primes in A050414.
%C A172041 The next term has 12851 digits. - _Harvey P. Dale_, Aug 27 2023
%t A172041 Select[Table[2^p-3,{p,Prime[Range[100]]}],PrimeQ] (* _Harvey P. Dale_, Aug 27 2023 *)
%K A172041 nonn
%O A172041 1,1
%A A172041 _Vincenzo Librandi_, Jan 24 2010
%E A172041 Definition clarified by _R. J. Mathar_, Jan 28 2010