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 A083805 #6 Dec 05 2013 19:56:15 %S A083805 1,6,40,300,2400,20000,171429,1500004,13333369,1200003211,10909120100, %T A083805 100000267584,9230793930832,85714515072012,8000021406721121, %U A083805 750002006880105095,7058842417695106777,66666845056009341783 %N A083805 n-th partial concatenation of terms of A083804 divided by n. %e A083805 1,12,120,1200,12000,120000 1200003 etc. are multiples of 1,2,3,4,5,6 and 7 respectively. %Y A083805 Cf. A083804. %K A083805 base,easy,nonn %O A083805 1,2 %A A083805 _Amarnath Murthy_, May 08 2003 %E A083805 More terms from _Joshua Zucker_, May 18 2006