314344800

Appears in sequences

• Triangular array of the number of binary, rooted, leaf-labeled tree topologies with n leaves and k cherries, n >= 2, 1 <= k <= floor(n/2).at n=27A306364
• Number of distinct sets F = {P_1, P_2, ..., P_k} where P_i is a faithful permutation representation of Aut(G_i) as defined in the comments, and where G_i is the i-th group of order n.at n=8A389620