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 A067917 #5 Mar 30 2012 18:38:52 %S A067917 1,498,5568,6050,13355,19997,86532,1232762,55372414,58828570, %T A067917 515325171,585021906,3531704172,8467462253,33628341236,39825271855, %U A067917 103454395889,619628068650,864282158571,2124680840763,4385336400732,7477492931412 %N A067917 Engel expansion of zeta(9)=sum(i>0,1/i^9). %Y A067917 See A006784 for explanation of Engel expansions. %K A067917 easy,nonn %O A067917 1,2 %A A067917 _Benoit Cloitre_, Mar 03 2002