Largest value in '3x+1' trajectory of n.

Terms

a(0) =1a(1) =2a(2) =16a(3) =4a(4) =16a(5) =16a(6) =52a(7) =8a(8) =52a(9) =16a(10) =52a(11) =16a(12) =40a(13) =52a(14) =160a(15) =16a(16) =52a(17) =52a(18) =88a(19) =20a(20) =64a(21) =52a(22) =160a(23) =24a(24) =88a(25) =40a(26) =9232a(27) =52a(28) =88a(29) =160