The Most Sequels Ever

The Most Sequels Ever is it a good claim or a bad claim? You have to really discount certain franchises here, firstly the Carry On set of movies which are not true sequels they are essentially the same story in different settings. Exactly the same applies for the James Bond series of movies, again they are not true sequels. So that brings us to one collection of movies with the most sequels ever which is..... Friday the 13th.