The smallest positive integer that produces exactly n primes in a Collatz trajectory.

Terms

a(0) =2a(1) =5a(2) =3a(3) =15a(4) =11a(5) =7a(6) =19a(7) =43a(8) =67a(9) =89a(10) =39a(11) =127a(12) =123a(13) =223a(14) =111a(15) =351a(16) =175a(17) =155a(18) =103a(19) =63a(20) =107a(21) =71a(22) =47a(23) =31a(24) =27a(25) =97a(26) =193a(27) =171a(28) =231a(29) =487