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 A082004 #4 Dec 05 2013 19:56:03 %S A082004 1,3,6,9,15,21,27,33,39,57,63,81,93,99,111,123,129,147,171,177,189, %T A082004 213,231,243,267,279,291,297,303,333,339,363,369,387,393,399,405,411, %U A082004 441,501,513,531,537,567,573,579,591,597,627,639,651,675,681,693,699,717 %N A082004 First column of array in A082002. %Y A082004 Cf. A082002, A082003, A082005. %K A082004 nonn %O A082004 1,2 %A A082004 _Amarnath Murthy_, Apr 05 2003 %E A082004 More terms from _David Wasserman_, Jul 30 2004