user: Question: What is the lowest Week, when Attendance is 38624?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'September 17, 1961', 'Washington Redskins', 'W 35-3', 43412.0]
SQL:

assistant: SELECT MIN("Week") FROM "Table" WHERE "Attendance" = 38624.0;