10108800domain: NAppears in sequencesa(n) = C(n+3,3)*n^3/4.at n=24A085284Sum of the non-unitary divisors of A064115(n) (or of 1+A064115(n)).at n=30A103846Sum of divisors of Catalan number A000108(n).at n=14A152761Molecular topological indices of the triangular graphs.at n=25A192849