Trajectory of 7 under repeated application of the map in A185452.

Terms

a(0) =7a(1) =18a(2) =9a(3) =23a(4) =58a(5) =29a(6) =73a(7) =183a(8) =458a(9) =229a(10) =573a(11) =1433a(12) =3583a(13) =8958a(14) =4479a(15) =11198a(16) =5599a(17) =13998a(18) =6999a(19) =17498a(20) =8749a(21) =21873a(22) =54683a(23) =136708a(24) =68354a(25) =34177a(26) =85443a(27) =213608a(28) =106804a(29) =53402