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 A158992 #9 Mar 17 2014 07:46:55 %S A158992 1,-2,23,9,-757,-381,399641,38829,-8068717,-7010361,20212713133, %T A158992 1948556049,-55894488760807,-769514725941,283145183503343, %U A158992 409271750511669,-2926186778206842029,-281971236851531121,17744532347627812001939,244268324199676177689 %N A158992 Numerator of Bernoulli(n, 1/10). %H A158992 Vincenzo Librandi, <a href="/A158992/b158992.txt">Table of n, a(n) for n = 0..250</a> %t A158992 Numerator/@BernoulliB[Range[0,20],1/10] (* _Harvey P. Dale_, May 25 2011 *) %Y A158992 For denominators see A158994. %K A158992 sign,frac %O A158992 0,2 %A A158992 _N. J. A. Sloane_, Nov 08 2009