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 A113559 #4 Dec 05 2013 19:57:07 %S A113559 4,14,114,1004,100040,100014,1000034,10000024,100000044,10000000040, %T A113559 10000000054,100000000044,1000000000064,10000000000004, %U A113559 1000000000000140,1000000000000064,10000000000000084,100000000000000044,1000000000000000094 %N A113559 Least multiple of n in which the n-th digit from left is 4. %e A113559 a(4)= 1004, in which the fourth digit is 4. %Y A113559 Cf. A113556, A113557, A113558. %K A113559 base,easy,nonn %O A113559 1,1 %A A113559 _Amarnath Murthy_, Nov 06 2005 %E A113559 More terms from _Joshua Zucker_ and Carolyn Debelak (cdebelak(AT)ashland.edu), May 03 2006