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 A033628 #6 Mar 30 2012 18:34:52 %S A033628 1,2,4,13,16,28,82,97,106,145,148,175,238,241,253,316,319,358,370,382, %T A033628 400,409,412,451,502,544,568,607,646,673,685,688,739,751,781,820,847, %U A033628 949,991,1018,1030,1081,1186,1252,1360,1387,1462,1465,1489,1492 %N A033628 Numbers that are in both the 1-additive and 0-additive sequences (A002858 and A033627). %D A033628 R. K. Guy, Unsolved Problems in Number Theory, C4 %K A033628 nonn %O A033628 1,2 %A A033628 _Jud McCranie_