In which series was season 18?
CREATE TABLE table_2409041_6 (no_in_series VARCHAR, no_in_season VARCHAR)
SELECT COUNT(no_in_series) FROM table_2409041_6 WHERE no_in_season = 18
### Context: CREATE TABLE table_2409041_6 (no_in_series VARCHAR, no_in_season VARCHAR) ### Question: In which series was season 18? ### Answer: SELECT COUNT(no_in_series) FROM table_2409041_6 WHERE no_in_season = 18