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_24961421_1 (series__number VARCHAR, season__number VARCHAR)

### Question ###
What number in the series was episode 7 in the season?

### Accurate SQL ###

SELECT series__number FROM table_24961421_1 WHERE season__number = 7