2581284541domain: NAppears in sequencesExpansion of e.g.f.: (x/(1-x))*exp(x/(1-x)).at n=11A052852Generalized Bell numbers B_{4,2}.at n=5A072678Expansion of e.g.f.: exp(Sum_{k>=1} (k-1)*x^k/k).at n=12A288268