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 A152872 #10 Sep 08 2022 08:45:39 %S A152872 1,1,2,2,3,2,3,2,7,3,5,3,3,5,6,7,8,9,9,6,8,9,5,10,4,10,7,11,7,11,8,11, %T A152872 19,18,10,12,17,19,15,7,20,24,15,15,14,16,16,26,18,19,22,22,21,23,13, %U A152872 29,25,22,21,23,23,30,22,21,18,47,31,41,23,23,28,36,17,38,31,48,28,46,24,46 %N A152872 The length of the n-th row in A152871. %H A152872 Jason Kimberley, <a href="/A152872/b152872.txt">Table of n, a(n) for n = 1..170</a> %o A152872 (Magma) use code in A152871. %Y A152872 Cf. A152451. %K A152872 nonn,easy %O A152872 1,3 %A A152872 _Vladimir Shevelev_, Dec 14 2008 %E A152872 Renamed and extended by _Jason Kimberley_, Feb 12 2013