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 A102184 #14 Aug 15 2021 09:02:31 %S A102184 5,11,19,22,28,29,42,61,68,72,108,120,126,211,223,281,301,308,333,344, %T A102184 347,363,435,462,519,538,605 %N A102184 Iccanobirt semiprime indices (14 of 15): Indices of semiprime numbers in A102124. %F A102184 A102124(a(n)) = A102204(n). %Y A102184 Cf. A001358, A102124, A102171-A102185, A102204. %K A102184 nonn,more,less,base %O A102184 1,1 %A A102184 _Jonathan Vos Post_ and _Ray Chandler_, Dec 31 2004 %E A102184 a(14)-a(15) from _Robert Price_, Nov 10 2018 %E A102184 Offset changed to 1 and a(16)-a(27) from _Jinyuan Wang_, Aug 15 2021