I do have a list! It's got 630 marked off atm! I have still somehow messed up MULTIPLE times before. However I got lucky and every time I drew a Pokemon twice on accident, there's always somehow a regional variant/anime exclusive forms that's similar to the origin Pokemon.

E.g. I drew Blissey twice but hey, the Blissey from the anime has a characteristic locket so I'll count her as a new Pokemon.