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 A068375 #5 Mar 30 2012 18:38:53 %S A068375 1,1,1,1,1,1,1,3,6,333,444,476,735,1227,1740,16541,19348,45751,49117, %T A068375 139069,567376,1438204,23992692,36889249,69357744,206213866,487816917, %U A068375 23325191834,82451809814,378427041146,431057010568,793887257125 %N A068375 Engel expansion of exp(2). %C A068375 Cf. A006784 %K A068375 nonn %O A068375 1,8 %A A068375 _Benoit Cloitre_, Mar 03 2002