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 A158300 #5 Mar 16 2014 14:25:28
%S A158300 1,-4,61,-55,14909,-2365,791251,-81235,18611189,-2688697,1314206255,
%T A158300 -75360175,1474324903679,-3120712309,148245882757,73095622325,
%U A158300 -601280097848267,-37106070169201,382216911865193617,10910986778031065,-53074470254129087681,-4201158650597043373
%N A158300 Numerator of Bernoulli(n, -5/6).
%H A158300 Vincenzo Librandi, <a href="/A158300/b158300.txt">Table of n, a(n) for n = 0..250</a>
%t A158300 Table[Numerator[BernoulliB[n, -5/6]], {n, 0, 50}] (* _Vincenzo Librandi_, Mar 16 2014 *)
%Y A158300 For denominators see A158301.
%K A158300 sign,frac
%O A158300 0,2
%A A158300 _N. J. A. Sloane_, Nov 08 2009