-192451domain: ZAppears in sequencesExpansion of (1-x)^(-1)/(1+2*x^2+x^3).at n=37A077894G.f. A(x) satisfies: A(x) = x*exp(-A(-x) + A(-x^2)/2 - A(-x^3)/3 + A(-x^4)/4 - A(-x^5)/5 + ...).at n=23A306768