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 A141186 #10 Jan 25 2023 09:16:21 %S A141186 2,3,5,1977326743,13,323,23, %T A141186 2159424054808578564166497528588784562372597429, %U A141186 19782022283855446341112457192300036270147066771005176357387103237,2021 %N A141186 (1, 2, 3, 2^2, 5, 2*3, 7, 2^3, 3^2, 2*5, 11, 2^2*3, ...) becomes (2, 3, 5, 7^11, 13, 17*19, 23, 29^31, 37^41, 41*43, 53, 59^61*67, ...). %e A141186 a(5)=7^11=1977326743. %e A141186 a(7)=17*19=323, %e A141186 etc. %Y A141186 Cf. A141287, A141261, A143678. %K A141186 nonn,less %O A141186 1,1 %A A141186 _Juri-Stepan Gerasimov_, Nov 08 2008 %E A141186 More terms from _R. J. Mathar_, Apr 14 2010