206064domain: NAppears in sequencesLeast k such that first k terms of A006928 contain n more 1's than 2's.at n=34A025506Coordination sequence for diamond structure D^+_6. (Edges defined by l_1 norm = 1.)at n=12A035879Molecular topological indices of the complete tripartite graphs K_{n,n,n}.at n=17A192491