Sum of the first n^3 cubes.

Terms

a(0) =0a(1) =1a(2) =1296a(3) =142884a(4) =4326400a(5) =62015625a(6) =549246096a(7) =3480528016a(8) =17247043584a(9) =70801227225a(10) =250500250000a(11) =785786510916