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 A085187 #8 Jan 12 2024 10:58:36 %S A085187 0,1,11,20,101,200,201,211,220,301,1011,1020,1101,1301,2200,2201,2211, %T A085187 2220,2301,3000,3001,3011,3020,3101,3211,3220,3301,4101,10200,10201, %U A085187 10211,10220,10301,11011,11020,11101,11301,13211,13220,13301,14101 %N A085187 Sequence A085188 shown in factorial base. (The longest prefix which can be shown with digits < 10.) %F A085187 a(n) = A007623(A085188(n)). %K A085187 nonn,base,fini %O A085187 0,3 %A A085187 _Antti Karttunen_, Jun 14 2003