Primes that remain prime through 2 iterations of function f(x) = 8x + 1.

Terms

a(0) =2a(1) =17a(2) =101a(3) =107a(4) =401a(5) =821a(6) =947a(7) =1151a(8) =1487a(9) =2027a(10) =2207a(11) =2411a(12) =2741a(13) =2927a(14) =3851a(15) =4391a(16) =4691a(17) =5231a(18) =5861a(19) =6701a(20) =7001a(21) =8297a(22) =8807a(23) =9341a(24) =9587a(25) =9851a(26) =10067a(27) =11117a(28) =11447a(29) =11897