Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_19852975_4 ( season__number INTEGER, writer_s_ VARCHAR )

### Question ###
From writer Denne Bart Petitclerc, what is the maximum season number?

### Accurate SQL ###

SELECT MAX(season__number) FROM table_19852975_4 WHERE writer_s_ = "Denne Bart Petitclerc"