; (2) for a felony for which the alien was sentenced to a term of imprisonment of not less than 30 months, the alien shall be fined under such title, imprisoned not more than 20 years, or both; (3) for a felony for which the alien was sentenced to a term of imprisonment of not less than 60 months, the alien shall be fined under such title, imprisoned not more than 25 years, or both; or (4) for murder, rape, kidnapping, or a felony offense described in chapter 77 (relating to peonage and slavery) or 113B (relating to terrorism) of such title, or for 3 or more felonies of any kind, the alien shall be fined under such title, imprisoned not more than 30 years, or both. (c) Reentry after repeated removal Any alien who has been denied admission, excluded, deported, or removed 3 or more times and thereafter enters, attempts to enter, crosses the border to, attempts to cross the border to, or is at any time found in the United States, shall be fined under title 18, United States Code, imprisoned not more than 20 years, or both. (d) Proof of prior convictions The prior convictions described in subsection (b) are elements of the crimes described, and the penalties in that subsection shall apply only in cases in which the conviction or convictions that form the basis for the additional penalty are— (1) alleged in the indictment or information