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 A038834 #9 Mar 30 2012 18:39:51 %S A038834 2,25,43,1523,1833,1016,105511,39366,19872,163433,576843397,335121400, %T A038834 338128753,173216346,792656991 %N A038834 Past of komet 'k2' (A038807). %H A038834 Lars Blomberg & Hans Havermann, <a href="https://spreadsheets.google.com/ccc?key=0Ars3II3ElHF_dHN4aVhseV90WDJSSTlJQXJQVzl5cGc&hl=en">komets & planits (250 kometary path fragments)</a> %H A038834 Hans Havermann, <a href="http://chesswanks.com/txt/ARecreationalEndeavour.txt">A Recreational Endeavour</a> %F A038834 a(0) = 2; a(n) = a(n-1)-th term in Kimberling's sequence A006852. %Y A038834 Cf. A038807, A006852, A007063, A035486. %K A038834 nonn,nice %O A038834 0,1 %A A038834 _Hans Havermann_