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

Terms

a(0) =109891a(1) =324763a(2) =852367a(3) =3371527a(4) =3557797a(5) =4448701a(6) =4471549a(7) =5304661a(8) =5616679a(9) =5688919a(10) =5727349a(11) =7766659a(12) =8028109a(13) =8554999a(14) =9034723a(15) =10867099a(16) =11146987a(17) =12396487a(18) =12926401a(19) =14186611a(20) =18274513a(21) =19251517a(22) =20882713a(23) =21810493a(24) =23953921