3x + 1 sequence starting at 33.

Terms

a(0) =33a(1) =100a(2) =50a(3) =25a(4) =76a(5) =38a(6) =19a(7) =58a(8) =29a(9) =88a(10) =44a(11) =22a(12) =11a(13) =34a(14) =17a(15) =52a(16) =26a(17) =13a(18) =40a(19) =20a(20) =10a(21) =5a(22) =16a(23) =8a(24) =4a(25) =2a(26) =1a(27) =4a(28) =2a(29) =1