Cubes that become a prime number when prefixed with a 2.

Terms

a(0) =27a(1) =729a(2) =12167a(3) =19683a(4) =68921a(5) =148877a(6) =185193a(7) =328509a(8) =658503a(9) =704969a(10) =970299a(11) =1030301a(12) =1367631a(13) =2248091a(14) =3581577a(15) =5000211a(16) =9663597a(17) =15813251a(18) =17779581a(19) =19034163a(20) =30080231a(21) =36926037a(22) =38958219a(23) =46268279a(24) =51064811a(25) =53582633a(26) =57960603a(27) =70444997a(28) =78953589a(29) =85766121