Trajectory of 45 under prime factor concatenation procedure.

Terms

a(0) =45a(1) =3a(2) =3a(3) =5a(4) =5a(5) =67a(6) =3a(7) =3a(8) =3a(9) =3a(10) =7a(11) =17a(12) =37a(13) =53a(14) =239a(15) =727a(16) =3a(17) =41a(18) =1949a(19) =3411949