a(n) = (prime(n)^5 - prime(n))/30.

Terms

a(0) =1a(1) =8a(2) =104a(3) =560a(4) =5368a(5) =12376a(6) =47328a(7) =82536a(8) =214544a(9) =683704a(10) =954304a(11) =2311464a(12) =3861872a(13) =4900280a(14) =7644832a(15) =13939848a(16) =23830808a(17) =28153208a(18) =45004168a(19) =60140976a(20) =69102384a(21) =102568544a(22) =131301352a(23) =186135312a(24) =286244672a(25) =350336680a(26) =386424688a(27) =467517240a(28) =512874648