user: Question: What is the number of weeks where the venue was memorial stadium and the attendance was less than 41252?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Venue', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'September 15, 1974', 'Minnesota Vikings', 'L 32-17', 'Lambeau Field', 56267.0]
SQL:

assistant: SELECT COUNT("Week") FROM "Table" WHERE "Venue" = 'memorial stadium' AND "Attendance" < 41252.0;