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

### Instruction:
what is the maximum number in the season wher the us viewers is 2.59?

### Inputs:
table_name: table, columns: ['No. in series', 'No. in season', 'Title', 'Directedby', 'Writtenby', 'Originalairdate', 'Production code', 'U.S.viewers (million)']

### Response:
SELECT MAX No. in season FROM table WHERE U.S.viewers (million) = 2.59