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 A070841 #4 Dec 05 2013 19:55:19 %S A070841 2,3,4,22,5,6,7,8,222,9,33,44,2222,55,333,22222,66,77,88,444,222222, %T A070841 99,3333,555,2222222,666,33333,4444,22222222,777,888,222222222,5555, %U A070841 999,333333,44444,2222222222,6666,22222222222,3333333,7777,55555,8888 %N A070841 Repdigits (A010785), excluding repunits (A002275), ordered by product of digits (A007954). %Y A070841 Cf. A070840. %K A070841 base,nonn %O A070841 1,1 %A A070841 _Amarnath Murthy_, May 12 2002 %E A070841 Edited and extended by _Ray Chandler_, Feb 10 2009