What number in the series are the episodes with production code 5016/5017?
CREATE TABLE table_21747 (
    "No. in series" text,
    "No. in season" text,
    "Title" text,
    "Directed by" text,
    "Written by" text,
    "Original air date" text,
    "Production code" text,
    "U.S. viewers (millions)" text
)
SELECT "No. in series" FROM table_21747 WHERE "Production code" = '5016/5017'
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: What number in the series are the episodes with production code 5016/5017? ### Input: CREATE TABLE table_21747 (
    "No. in series" text,
    "No. in season" text,
    "Title" text,
    "Directed by" text,
    "Written by" text,
    "Original air date" text,
    "Production code" text,
    "U.S. viewers (millions)" text
) ### Response: SELECT "No. in series" FROM table_21747 WHERE "Production code" = '5016/5017'