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 A124358 #14 Dec 15 2024 17:15:43
%S A124358 5,499,49891,4989079,498907883,49890788291,4989078829037,
%T A124358 498907882903681,49890788290368043,4989078829036804253,
%U A124358 498907882903680425207,49890788290368042520691,4989078829036804252069087,498907882903680425206908691,49890788290368042520690869043
%N A124358 Largest prime < 100*a(n-1), a(1) = 5.
%H A124358 James C. McMahon, <a href="/A124358/b124358.txt">Table of n, a(n) for n = 1..100</a>
%t A124358 a[1]=5;a[n_]:=NextPrime[100a[n-1],-1];Table[a[n],{n,15}] (* _James C. McMahon_, Dec 15 2024 *)
%Y A124358 Cf. A124267, A124339.
%K A124358 nonn
%O A124358 1,1
%A A124358 _Artur Jasinski_, Dec 16 2006
%E A124358 a(13)-(15) from _James C. McMahon_, Dec 15 2024