Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the production number for the episode called "Random on Purpose"?

### Inputs:
table_name: table, columns: ['No. in series', 'Title', 'Directed by', 'Written by', 'Original air date', 'Prod. No.', 'Viewers (millions)']

### Response:
SELECT Prod. No. FROM table WHERE Title = "Random on Purpose"