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%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
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