Sum of all squarefree semiprimes with greater prime factor prime(n).

Terms

a(0) =0a(1) =6a(2) =25a(3) =70a(4) =187a(5) =364a(6) =697a(7) =1102a(8) =1771a(9) =2900a(10) =3999a(11) =5920a(12) =8077a(13) =10234a(14) =13207a(15) =17384a(16) =22479a(17) =26840a(18) =33567a(19) =40328a(20) =46647a(21) =56248a(22) =65653a(23) =77786a(24) =93411a(25) =107060a(26) =119583a(27) =135248a(28) =149439a(29) =167240