Iterate the map in A006368 starting at 8.

Terms

a(0) =8a(1) =12a(2) =18a(3) =27a(4) =20a(5) =30a(6) =45a(7) =34a(8) =51a(9) =38a(10) =57a(11) =43a(12) =32a(13) =48a(14) =72a(15) =108a(16) =162a(17) =243a(18) =182a(19) =273a(20) =205a(21) =154a(22) =231a(23) =173a(24) =130a(25) =195a(26) =146a(27) =219a(28) =164a(29) =246