86598domain: NAppears in sequencesNumber of loopless tree-rooted planar maps with 3 vertices and n faces and no isthmuses.at n=16A006428a(n) is the number of integers whose sum of divisors is 6^n.at n=24A048253Number of reduced tree pairs of n-carets.at n=7A111713Number of maximal irredundant sets in the n-path graph.at n=29A291055