Primes that remain prime through 5 iterations of the function f(x) = 10x + 9.

Terms

a(0) =13a(1) =293a(2) =6089a(3) =12823a(4) =37967a(5) =40949a(6) =121687a(7) =192037a(8) =243487a(9) =379679a(10) =409499a(11) =471841a(12) =1006193a(13) =1217131a(14) =1397311a(15) =1438793a(16) =1503613a(17) =1541063a(18) =1754591a(19) =2058629a(20) =2088421a(21) =2346791a(22) =2360357a(23) =2428243a(24) =2458609a(25) =2621527a(26) =2646167a(27) =2721053a(28) =3223247a(29) =3280003