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 A102204 #12 Aug 15 2021 09:31:51 %S A102204 4,581,72451,789881,92901661,80528542,89682664933,36628597458132971, %T A102204 8945663663547804571,28420671229606403893, %U A102204 9998333571760746216777082258511,87894839031505105300173553652227351,395837506159704761826300702753027374,83686138907389068924615617486884954496701274604545267754241 %N A102204 Iccanobirt semiprimes (14 of 15): Semiprime numbers in A102124. %F A102204 a(n) = A102124(A102184(n)). %Y A102204 Cf. A001358, A102124, A102184, A102191-A102205. %K A102204 nonn,less,base %O A102204 1,1 %A A102204 _Jonathan Vos Post_ and _Ray Chandler_, Dec 31 2004 %E A102204 Offset changed to 1 and more terms from _Jinyuan Wang_, Aug 15 2021