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 A050641 #11 Mar 01 2019 15:53:22 %S A050641 1,5,45,3632,781253632 %N A050641 a(n+1)^3 is next smallest nontrivial cube containing a(n)^3 as a substring. %C A050641 a(n+1) <= 10^m + a(n) where m is the number of digits of a(n)^3. - _Chai Wah Wu_, Mar 01 2019 %Y A050641 Cf. A050640, A048564, A050647. %K A050641 nonn,base,more %O A050641 1,2 %A A050641 _Patrick De Geest_, Jul 15 1999 %E A050641 a(5) from _Chai Wah Wu_, Mar 01 2019