Primes that remain prime through 5 iterations of function f(x) = 3x + 8.

Terms

a(0) =3181a(1) =61981a(2) =134291a(3) =342821a(4) =459091a(5) =882451a(6) =984931a(7) =1016011a(8) =1028471a(9) =1181701a(10) =1391561a(11) =1897801a(12) =2009311a(13) =2272301a(14) =2476421a(15) =2769791a(16) =3048041a(17) =3085421a(18) =3128821a(19) =3207221a(20) =3545111a(21) =4092931a(22) =4690591a(23) =5015321a(24) =5863651a(25) =6027941a(26) =6361351a(27) =6796541