What is the series number for Season #18?
CREATE TABLE table_12564633_1 (series__number INTEGER, season__number VARCHAR)
SELECT MIN(series__number) FROM table_12564633_1 WHERE season__number = 18
### Context: CREATE TABLE table_12564633_1 (series__number INTEGER, season__number VARCHAR) ### Question: What is the series number for Season #18? ### Answer: SELECT MIN(series__number) FROM table_12564633_1 WHERE season__number = 18