Trajectory of 3 under map n->35n+1 if n odd, n->n/2 if n even.

Terms

a(0) =3a(1) =106a(2) =53a(3) =1856a(4) =928a(5) =464a(6) =232a(7) =116a(8) =58a(9) =29a(10) =1016a(11) =508a(12) =254a(13) =127a(14) =4446a(15) =2223a(16) =77806a(17) =38903a(18) =1361606a(19) =680803a(20) =23828106a(21) =11914053a(22) =416991856a(23) =208495928a(24) =104247964a(25) =52123982a(26) =26061991a(27) =912169686a(28) =456084843