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 A158653 #5 Mar 16 2014 18:09:51
%S A158653 1,-3,11,21,-1313,-595,90941,39109,-5906513,-4525731,1896204505,
%T A158653 805349237,-16784375281883,-203564524787,10883940836027,
%U A158653 69292329479205,-359945426667971521,-30553447357629763,279390122477674946807,16939595863125337813
%N A158653 Numerator of Bernoulli(n, 1/8).
%H A158653 Vincenzo Librandi, <a href="/A158653/b158653.txt">Table of n, a(n) for n = 0..250</a>
%t A158653 Table[Numerator[BernoulliB[n, 1/8]], {n, 0, 50}] (* _Vincenzo Librandi_, Mar 16 2014 *)
%Y A158653 For denominators see A158854.
%K A158653 sign,frac
%O A158653 0,2
%A A158653 _N. J. A. Sloane_, Nov 08 2009