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 A158541 #5 Mar 16 2014 16:40:01
%S A158541 1,-17,409,-510,105599,-22270,783607,-744770,132547199,-26478486,
%T A158541 8708240645,-496587850,1903871040587,-71670092702,-338854110137,
%U A158541 12249601191150,28492203321193183,-4370053436967718,-2259849766310584691,1846812141916088230,3101187019750975673389
%N A158541 Numerator of Bernoulli(n, -5/7).
%H A158541 Vincenzo Librandi, <a href="/A158541/b158541.txt">Table of n, a(n) for n = 0..250</a>
%t A158541 Table[Numerator[BernoulliB[n, -5/7]], {n, 0, 50}] (* _Vincenzo Librandi_, Mar 16 2014 *)
%Y A158541 For denominators see A158475.
%K A158541 sign,frac
%O A158541 0,2
%A A158541 _N. J. A. Sloane_, Nov 08 2009