CREATE TABLE table_name_81 (week INT, result VARCHAR, attendance VARCHAR)

What was the highest week with a w 21-17 result, and more than 45,254 in attendance?
SELECT MAX(week) FROM table_name_81 WHERE result = "w 21-17" AND attendance > 45 OFFSET 254
SELECT MAX("week") FROM "table_name_81" WHERE "attendance" > 45 AND "result" = "w 21-17" OFFSET 254