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 A156330 #12 Apr 19 2014 14:41:18 %S A156330 1,-5,-11,415,1705,-120125,-737891,73544935,602197585,-77251102325, %T A156330 -790660144571,123981052932655,1522721707926265,-282190333761783725, %U A156330 -4043468004740204051,864617687280807347575,14158848206836206915745,-3431276846283480837508325 %N A156330 Numerator of Euler(n, 1/12). %H A156330 Vincenzo Librandi, <a href="/A156330/b156330.txt">Table of n, a(n) for n = 0..200</a> %F A156330 G.f.: conjecture T(0)/(1+5*x), where T(k) = 1 - 36*x^2*(k+1)^2/(36*x^2*(k+1)^2 + (1+5*x)^2/T(k+1) ); (continued fraction). - _Sergei N. Gladkovskii_, Nov 12 2013 %F A156330 a(n) = (-6)^n*skp(n, 5/6), where skp(n,x) are the Swiss-Knife polynomials A153641. - _Peter Luschny_, Apr 19 2014 %t A156330 Numerator[EulerE[Range[0,20],1/12]] (* _Vincenzo Librandi_, May 05 2012 *) %Y A156330 For denominators see A001021. %K A156330 sign,frac %O A156330 0,2 %A A156330 _N. J. A. Sloane_, Nov 07 2009