It's not blank, I swear:
It's just a waste of time to renumber the Doctors.
1. Hartnell
2. Troughton
3. Pertwee
4. Baker
5. Davison
6. Baker #2
7. McCoy
8. McGann
(War Doctor) John Hurt
9. Eccleston
10. David Tennant
11. Matt Smith
The way that we count regenerations is very specific. We don't count David Tennant using his regeneration energy to make the Meta-CrCIA Doctor. We don't count Matt Smith using his energy to fix River's hand in Angels Take Manhattan. But, most importantly, we don't count the Valeyard. The Valeyard is very similar, in concept, to John Hurt's Doctor. It's an inbetween, so it doesn't count as a proper Doctor.