350889domain: NAppears in sequencesTriangle read by rows: T(n,k) = Sum_{j=k..n} binomial(n,j)*Stirling_2(j,k)*Bell(n-j), where Bell(n) = A000110(n), for n >= 1, 0 <= k <= n-1.at n=50A244489G.f.: Sum_{n>=0} exp(-(1 + n^2*x)) * (1 + n^2*x)^n / n!.at n=5A245109E.g.f.: exp(exp(x) - 1) * (exp(x) - 1)^5 / 5!.at n=5A346844