2192400domain: NAppears in sequencesTriangle read by rows: T(n,m) = number of 3-uniform T_0-hypergraphs with n distinct edges and m vertices(n>=3, 1<=m<=2*n+1).at n=23A093854Expansion of e.g.f. Product_{k>0} (1+k*x^k)^(1/k).at n=9A294464