How many episodes have the season number of 1?
CREATE TABLE table_21386 (
    "Series #" real,
    "Season #" real,
    "Title" text,
    "Directed by" text,
    "Original air date" text,
    "Prod. code" real
)
SELECT COUNT("Series #") FROM table_21386 WHERE "Season #" = '1'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: How many episodes have the season number of 1? ### Input: CREATE TABLE table_21386 (
    "Series #" real,
    "Season #" real,
    "Title" text,
    "Directed by" text,
    "Original air date" text,
    "Prod. code" real
) ### Response: SELECT COUNT("Series #") FROM table_21386 WHERE "Season #" = '1'