859527domain: NAppears in sequencesSum T(n,k) of multinomials M(n; lambda), where lambda ranges over all partitions of n into parts incorporating k; triangle T(n,k), n>=0, 0<=k<=n, read by rows.at n=46A327801Sum of multinomials M(n; lambda), where lambda ranges over all partitions of n into parts incorporating 1.at n=9A327827