92207808000domain: NAppears in sequencesNumber of labeled rooted polygonal cacti (Husimi graphs) with n nodes.at n=11A035087Number of labeled rooted trees with n nodes and 3 leaves.at n=8A055304a(1)=1; a(n) = n*lcm(n, a(n-1)) for n > 1.at n=10A192217a(n) = lcm({n! * binomial(n, k) for k = 0..n}).at n=11A360283