user: Question: What was the highest week with a w 21-17 result, and more than 45254 in attendance?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'September 7, 1980', 'at New Orleans Saints', 'W 26-23', 58621.0]
SQL:

assistant: SELECT MAX("Week") FROM "Table" WHERE "Result" = 'w 21-17' AND "Attendance" > 45254.0;