login
The coefficients (times n!) of the expansion of the sum {k=1 to Inf.} of Tan(x^n).
5

%I #2 Mar 30 2012 17:31:29

%S 0,1,2,8,24,136,960,5312,40320,491776,4112640,40270592,638668800,

%T 6249389056,91883151360,1919826163712,20922789888000,355897293438976,

%U 8676514912665600,121674189293944832,2757288942600192000

%N The coefficients (times n!) of the expansion of the sum {k=1 to Inf.} of Tan(x^n).

%t Range[0, 25]! CoefficientList[ Series[ Sum[ Tan[x^n], {n, 35}], {x, 0, 25}], x]

%Y Cf. A176473, A176474.

%K nonn

%O 1,3

%A _Robert G. Wilson v_, Apr 18 2010