Least prime which is followed by a gap of 30n.

Terms

a(0) =4297a(1) =43331a(2) =404851a(3) =1895359a(4) =13626257a(5) =17051707a(6) =20831323a(7) =391995431a(8) =1391048047a(9) =4758958741a(10) =6291356009a(11) =20068818197a(12) =53241805651a(13) =82490815123a(14) =63816175447a(15) =482423533897a(17) =738832927927