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 A158518 #7 Mar 16 2014 16:38:43 %S A158518 1,-13,229,-195,24599,-2665,46507,-44915,8833199,416403,-1179453655, %T A158518 -118121575,1236316425587,21956821471,-4276025257877,-5737064850075, %U A158518 108297641842213183,1936750565168939,-9194148370010304671,-822132445349796815,12552825320814878738389 %N A158518 Numerator of Bernoulli(n, -3/7). %H A158518 Vincenzo Librandi, <a href="/A158518/b158518.txt">Table of n, a(n) for n = 0..250</a> %t A158518 Numerator[BernoulliB[Range[0,20],-3/7]] (* _Harvey P. Dale_, Oct 18 2012 *) %Y A158518 For denominators see A158475. %K A158518 sign,frac %O A158518 0,2 %A A158518 _N. J. A. Sloane_, Nov 08 2009