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 A228052 #4 Aug 06 2013 18:45:20 %S A228052 0,1,2,3,4,5,6,7,8,42212277303475883580,42212277303475883581, %T A228052 42212277303475883582,42212277303475883583,42212277303475883584, %U A228052 42212277303475883585,42212277303475883586,42212277303475883587,42212277303475883588,1066338786883726756382 %N A228052 The decimal representation of n is a substring of its base 9 representation. %H A228052 Giovanni Resta, <a href="/A228052/b228052.txt">Table of n, a(n) for n = 1..103</a> (terms < 10^50) %e A228052 42212277303475883588 = (342212277303475883588)_9. %Y A228052 Cf. A038102-A038106, A228050, A228051, A227549. %K A228052 nonn,base %O A228052 1,3 %A A228052 _Giovanni Resta_, Aug 06 2013