Trajectory of 84 under the map x -> x/2 for x even, x -> 3x - 1 for x odd.

Terms

a(0) =84a(1) =42a(2) =21a(3) =62a(4) =31a(5) =92a(6) =46a(7) =23a(8) =68a(9) =34a(10) =17a(11) =50a(12) =25a(13) =74a(14) =37a(15) =110a(16) =55a(17) =164a(18) =82a(19) =41a(20) =122a(21) =61a(22) =182a(23) =91a(24) =272a(25) =136a(26) =68a(27) =34a(28) =17a(29) =50