Which films were not part of the larger franchise?

Halloween 3 was famously not connected to any other film in the franchise, being the only film not to have Michael Myers.

Fast and the Furious Tokyo Drift was pretty disconnected from the rest of the series until the 7th film, barring a brief appearance by Vin Diesel at the very end.

The first Friday the 13th movie is actually pretty different from the rest of the franchise being the only film not to have Jason as the main villain.