a(n) = n^4*sigma_6(n).

Terms

a(0) =0a(1) =1a(2) =1040a(3) =59130a(4) =1065216a(5) =9766250a(6) =61495200a(7) =282477650a(8) =1090785280a(9) =3491573931a(10) =10156900000a(11) =25937439242a(12) =62986222080a(13) =137858520410a(14) =293776756000a(15) =577478362500