SELECT "Attendance" FROM table_49107 WHERE "Opponent" = 'montreal alouettes' AND "Date" = 'oct 4'
What is Attendance, when Opponent is Montreal Alouettes, and when Date is Oct 4?
CREATE TABLE table_49107 (
    "Week" real,
    "Date" text,
    "Opponent" text,
    "Score" text,
    "Result" text,
    "Attendance" text,
    "Record" text
)