user: Question: What is the # for the episode with a Production code of 3T7057?
Columns: ['No.', '#', 'Title', 'Directed by', 'Written by', 'Original air date', 'Production code', 'U.S. viewers (million)']
Types: ['real', 'real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [10.0, 1.0, '"Bzzzzzzzzz!"', 'Adam Kane', 'Bryan Fuller', 'October1,2008', '3T7053', '6.32']
SQL:

assistant: SELECT "#" FROM "Table" WHERE "Production code" = '3T7057';