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 A156958 #6 Jul 31 2014 09:25:55 %S A156958 1,-1,-132,793,87252,-436921,-140768892,3947647721,422687372052, %T A156958 -3810109655911,-2039091735266652,44929891907903803, %U A156958 14426758204028393652,-187839991797725112301,-140733116432941105153212,16914279751678940247668857,1810353973870094177898260052 %N A156958 Numerator of Euler(n, 11/23). %H A156958 Vincenzo Librandi, <a href="/A156958/b156958.txt">Table of n, a(n) for n = 0..200</a> %t A156958 Numerator[EulerE[Range[0, 20], 11/23]] (* _Vincenzo Librandi_, Jul 31 2014 *) %Y A156958 For denominators see A156892. %K A156958 sign,frac %O A156958 0,3 %A A156958 _N. J. A. Sloane_, Nov 07 2009