59915domain: NAppears in sequencesa(n) = n*(14*n^2 - 21*n + 13)/6.at n=30A071229a(n+3) = 6*a(n) - 5*a(n+2), a(0) = -1, a(1) = 5, a(2) = -25.at n=7A110212Total number of parts of multiplicity 6 in all partitions of n.at n=49A222706