Cubes of A006450: a(n) = prime(prime(n))^3.

Terms

a(0) =27a(1) =125a(2) =1331a(3) =4913a(4) =29791a(5) =68921a(6) =205379a(7) =300763a(8) =571787a(9) =1295029a(10) =2048383a(11) =3869893a(12) =5735339a(13) =6967871a(14) =9393931a(15) =13997521a(16) =21253933a(17) =22665187a(18) =36264691a(19) =43986977a(20) =49430863a(21) =64481201a(22) =80062991a(23) =97972181a(24) =131872229a(25) =163667323