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 A158697 #9 Mar 17 2014 04:13:46 %S A158697 1,-1,-13,15,1327,-545,-91003,38255,5906767,-4500801,-1896209615, %T A158697 804237775,16784378110837,-203494252897,-10883940950701, %U A158697 69286348649775,359945426905007999,-30552788046216833,-279390122489174329921,16939504477697671055 %N A158697 Numerator of Bernoulli(n, 3/8). %H A158697 Vincenzo Librandi, <a href="/A158697/b158697.txt">Table of n, a(n) for n = 0..250</a> %t A158697 Numerator/@BernoulliB[Range[0,30],3/8] (* _Harvey P. Dale_, Jul 16 2011 *) %Y A158697 For denominators see A158654. %K A158697 sign,frac %O A158697 0,3 %A A158697 _N. J. A. Sloane_, Nov 08 2009