-5545domain: ZAppears in sequencesExpansion of e.g.f.: tan(log(1+x)/exp(x)).at n=6A009654A Chebyshev transform of Padovan numbers.at n=34A099491Series reversion of x*(1 - x)/(1 - x - x^3).at n=18A243157Sum of n-th powers of the roots of x^3 + x^2 - 9*x - 1.at n=7A274075