624624domain: NAppears in sequencesMolecular topological indices of the complete tripartite graphs K_{n,n,n}.at n=25A192491a(n) = RF(n+1,3)*C(n+2,n-1), where RF(a,n) is the rising factorial.at n=11A253285Number of 5-cycles in the n-triangular graph.at n=12A290939