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

### Instruction:
How many were in attendance in a week less than 4 with a record of 2–1?

### Inputs:
table_name: table, columns: ['Week', 'Date', 'Opponent', 'Result', 'Game site', 'Record', 'Attendance']

### Response:
SELECT Attendance FROM table WHERE Week < 4 AND Record = 2–1