a(n) = n^3*sigma_7(n).

Terms

a(0) =0a(1) =1a(2) =1032a(3) =59076a(4) =1056832a(5) =9765750a(6) =60966432a(7) =282475592a(8) =1082196480a(9) =3488379453a(10) =10078254000a(11) =25937425932a(12) =62433407232a(13) =137858494046a(14) =291514810944a(15) =576921447000