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 A156265 #5 Jun 02 2025 01:21:22 %S A156265 1,2,1,1,2,2,3,2,1,2,2,1,1,2,1,0,0,1,1,2,1,1,2,2,1,0,1,1,2,1,1,2,2,3, %T A156265 2,1,1,2,2,1,2,2,3,2,2,3,3,4,3,2,3,3,2,2,3,3,4,3,2,2,3,2,1,2,2,1,0,1, %U A156265 1,2,1,1,2,2,1,2,2,3,3,2,1,2,2,3,2,2,3,3,2,1,2,2,1,1,2,1,0,0,1,1,0,1,1,2,1 %N A156265 a(n)=3*n-A078649(n). %F A156265 Conjectured to be o(n) %K A156265 nonn %O A156265 1,2 %A A156265 _Benoit Cloitre_, Feb 07 2009