Evolution of a cluster with N = 1000 stars, stellar mass M_stars = 10⁴ M_⊙, R_v = 0.14 pc, and R_star = 100 R_⊙ in the center of an external potential with M_ext = 10⁴ M_⊙. Uppermost panel: number of mergers as a function of time, the fraction of binary, hyperbolic, and chain mergers in the second panel, along with the fraction of stars that escape from the cluster. Third panel: 10, 50, and 90% Lagrangian radii, and bottom panel: mass growth of the most massive object that formed through mergers in the cluster. The drop in the 50% Lagrangian radius toward the end of the simulation suggests that the central object may grow up to 5000 M_⊙.