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 A026099 #6 Sep 15 2019 19:56:17 %S A026099 1,2,2,3,3,3,4,4,4,4,5,5,6,5,5,5,7,6,8,6,6,6,9,6,7,7,7,7,10,7,11,8,7, %T A026099 8,8,8,12,9,8,8,13,9,14,8,9,9,15,9,10,10,9,9,16,10,9,10,10,11,17,11, %U A026099 18,11,11,12,10,10,19,10,10,12,20,11,21,13,12,11,11,11,22,13,12,13,23,13,11,14,12,12,24,13,12,11,12,15,12,14,25,14,13,14 %N A026099 Row of A026098 that contains n. %K A026099 nonn %O A026099 1,2 %A A026099 _Clark Kimberling_ %E A026099 a(24) onward corrected by _Sean A. Irvine_, Sep 15 2019