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

### Instruction:
What is the smallest production number for the LT series with the Dumb Patrol title?

### Inputs:
table_name: table, columns: ['Title', 'Series', 'Characters', 'Production Num.', 'Release date']

### Response:
SELECT MIN Production Num. FROM table WHERE Series = lt AND Title = dumb patrol