Primes that remain prime through 4 iterations of function f(x) = 8x + 9.

Terms

a(0) =2293a(1) =5653a(2) =11503a(3) =76003a(4) =88813a(5) =100613a(6) =142993a(7) =294793a(8) =314983a(9) =351383a(10) =419603a(11) =463633a(12) =473293a(13) =520363a(14) =682063a(15) =694523a(16) =780733a(17) =836873a(18) =872393a(19) =895003a(20) =1004063a(21) =1043723a(22) =1085473a(23) =1277593a(24) =1290293a(25) =1318783a(26) =1336463a(27) =1446043a(28) =1483633a(29) =1539773