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 A156251 #4 Jul 22 2025 06:20:47 %S A156251 1,1,2,2,3,3,3,3,4,4,4,5,5,6,6,6,7,7,8,8,8,8,9,9,9,9,10,10,11,11,11, %T A156251 12,12,12,12,13,13,13,14,14,15,15,15,15,16,16,16,16,17,17,17,18,18,19, %U A156251 19,19,20,20,21,21,21,21,22,22,22,23,23,24,24,24,25,25,25,25,26,26,26,26 %N A156251 Least k such that A078649(k)>=n. %F A156251 a(n) should be asymptotic to n/3. %K A156251 nonn %O A156251 1,3 %A A156251 _Benoit Cloitre_, Feb 07 2009