user: Question: Attendance of 19,741 had what average week?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'September 17, 1950', 'at Baltimore Colts', 'W 38-14', '29,000']
SQL:

assistant: SELECT AVG("Week") FROM "Table" WHERE "Attendance" = '19,741';