6249389056domain: NAppears in sequencesThe coefficients (times n!) of the expansion of the sum {k=1 to Inf.} of Tan(x^n).at n=13A176475Expansion of e.g.f. Sum_{k>=1} tanh(x^k).at n=12A330504Expansion of e.g.f. Sum_{k>=1} (sec(x^k) + tan(x^k) - 1).at n=12A330527