Primes that remain prime through 5 iterations of function f(x) = 9x + 2.

Terms

a(0) =103a(1) =283a(2) =929a(3) =3931a(4) =7759a(5) =52973a(6) =75853a(7) =90031a(8) =93371a(9) =103561a(10) =106949a(11) =110821a(12) =128111a(13) =130841a(14) =137273a(15) =163861a(16) =198553a(17) =288023a(18) =342389a(19) =357031a(20) =377231a(21) =425681a(22) =429973a(23) =435181a(24) =450311a(25) =490663a(26) =526159a(27) =532199a(28) =552791a(29) =574801