A156180 - OEIS

%I #9 Jul 02 2020 10:45:11

%S 1,6,9,108,81,486,729,17496,6561,39366,59049,708588,531441,3188646,

%T 4782969,229582512,43046721,258280326,387420489,4649045868,3486784401,

%U 20920706406,31381059609,753145430616,282429536481,1694577218886,2541865828329,30502389939948

%N Denominator of Euler(n,1/3).

%H 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 1, -1/6, -2/9, 13/108, 22/81, -121/486, -602/729, 18581/17496, ...

%p [seq(euler(n,1/3),n=0..50)];

%t Denominator[EulerE[Range[0,30],1/3]] (* _Harvey P. Dale_, Aug 14 2011 *)

%Y Cf. A156179.

%K nonn

%O 0,2

%A _N. J. A. Sloane_, Nov 07 2009