Primes that remain prime through 4 iterations of function f(x) = 9x + 10.

Terms

a(0) =103a(1) =281a(2) =293a(3) =823a(4) =937a(5) =1733a(6) =3361a(7) =3919a(8) =4129a(9) =6101a(10) =8443a(11) =15413a(12) =16217a(13) =17959a(14) =21067a(15) =26459a(16) =26479a(17) =30253a(18) =31247a(19) =36691a(20) =37171a(21) =38561a(22) =40493a(23) =41411a(24) =46451a(25) =57709a(26) =60869a(27) =64621a(28) =79433a(29) =79987