# How many mathematical publications containing non-reprinted, original mathematics did John Nash publish?

American Mathematical Society lists 25 according to one of the comments in the thread below:

However, as indicated in the thread, a user indicated that almost half of these are reprints. Wikipedia.org gives the number as 21. Also in the above thread one of the authors list 13 as the answer to the question. Who's right?

• Including reprints, MathSciNet lists 26 publications. Omitting reprints and retrospectives, I got: 14 before 1966, and 6 since 1996. Total 20. Dec 2 '15 at 17:29