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 A173769 #15 Sep 08 2022 08:45:50
%S A173769 2,7,17,37,157,317,1277,2557,20477,655357,5242877,671088637,
%T A173769 2684354557,5368709117,343597383677,23058430092136939517,
%U A173769 23611832414348226068477,48357032784585166988247037,830767497365572420564879412675215357
%N A173769 Primes in A154117.
%C A173769 Apart from the first term, the same as A172156. - R. J. Mathar, Mar 17 2010
%C A173769 Primes of the form 5*2^n-3.
%H A173769 Vincenzo Librandi, <a href="/A173769/b173769.txt">Table of n, a(n) for n = 1..38</a>
%t A173769 Select[Table[5*2^n-3,{n,0,300}],PrimeQ] (* _Vincenzo Librandi_, Jul 26 2012 *)
%o A173769 (Magma) [ a: n in [0..150] | IsPrime(a) where a is 5*2^n-3 ];
%K A173769 nonn,easy
%O A173769 1,1
%A A173769 _Vincenzo Librandi_, Mar 05 2010
%E A173769 Edited by _N. J. A. Sloane_, Mar 17 2010