5x - 1 sequence starting at 19 (a(n+1) = a(n)/2 if a(n) is even, or 5*a(n)-1 if a(n) is odd).

Terms

a(0) =19a(1) =94a(2) =47a(3) =234a(4) =117a(5) =584a(6) =292a(7) =146a(8) =73a(9) =364a(10) =182a(11) =91a(12) =454a(13) =227a(14) =1134a(15) =567a(16) =2834a(17) =1417a(18) =7084a(19) =3542a(20) =1771a(21) =8854a(22) =4427a(23) =22134a(24) =11067a(25) =55334a(26) =27667a(27) =138334a(28) =69167a(29) =345834