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 A156912 #6 Jul 31 2014 09:06:33 %S A156912 1,-17,-60,11033,35340,-5897657,-56300580,53084692201,168821419980, %T A156912 -51212605971047,-814290036255300,603883438551408443, %U A156912 5761078665923973420,-2524662819650079910637,-56199253474221473102820,227336182671030705694314617,722932337025828180552747660 %N A156912 Numerator of Euler(n, 3/23). %H A156912 Vincenzo Librandi, <a href="/A156912/b156912.txt">Table of n, a(n) for n = 0..200</a> %t A156912 Numerator[EulerE[Range[0, 20], 3/23]] (* _Vincenzo Librandi_, Jul 31 2014 *) %Y A156912 For denominators see A156892. %K A156912 sign,frac %O A156912 0,2 %A A156912 _N. J. A. Sloane_, Nov 07 2009