Least number k that reaches 1 after n iterations of A071324.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =7a(6) =9a(7) =13a(8) =17a(9) =19a(10) =29a(11) =37a(12) =49a(13) =72a(14) =73a(15) =103a(16) =155a(17) =193a(18) =277a(19) =441a(20) =527a(21) =769a(22) =1109a(23) =1597a(24) =2309a(25) =2477a(26) =4733a(27) =6467a(28) =8649a(29) =12197