237432domain: NAppears in sequencesNormalized total height of all nodes in all rooted trees with n labeled nodes.at n=6A000435a(n) = 4*n^3 + 4*n.at n=39A105374Number T(n,k) of endofunctions on [n] with exactly k connected components and no fixed points; triangle T(n,k), n>=0, 0<=k<=floor(n/2), read by rows.at n=17A350452