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 A156179 #20 Jul 07 2021 15:46:00 %S A156179 1,-1,-2,13,22,-121,-602,18581,30742,-305071,-2523002,61203943, %T A156179 303692662,-4353296221,-50402079002,6669149100757,11030684333782, %U A156179 -206772189255571,-3077986048956602,128970681211645873,1066578948824962102,-24697503335329725121,-449342758735568563802 %N A156179 Numerator of Euler(n,1/3). %H A156179 Vincenzo Librandi, <a href="/A156179/b156179.txt">Table of n, a(n) for n = 0..200</a> %H A156179 Michael E. Hoffman, <a href="https://doi.org/10.37236/1453">Derivative Polynomials, Euler Polynomials, and Associated Integer Sequences</a>, The Electronic Journal of Combinatorics, Volume 6.1 (1999): Research paper R21, 13 p. See Eq. (14). %e A156179 1, -1/6, -2/9, 13/108, 22/81, -121/486, -602/729, 18581/17496, ... %p A156179 [seq(euler(n,1/3),n=0..50)]; %t A156179 Numerator[EulerE[Range[0,30],1/3]] (* _Harvey P. Dale_, Apr 29 2012 *) %Y A156179 Cf. A156180 and A079144. %Y A156179 Terms of even indices give A210657. %K A156179 sign,frac %O A156179 0,3 %A A156179 _N. J. A. Sloane_, Nov 07 2009