Trajectory of 1 under map n->49n+1 if n odd, n->n/2 if n even.

Terms

a(0) =1a(1) =50a(2) =25a(3) =1226a(4) =613a(5) =30038a(6) =15019a(7) =735932a(8) =367966a(9) =183983a(10) =9015168a(11) =4507584a(12) =2253792a(13) =1126896a(14) =563448a(15) =281724a(16) =140862a(17) =70431a(18) =3451120a(19) =1725560a(20) =862780a(21) =431390a(22) =215695a(23) =10569056a(24) =5284528a(25) =2642264