CREATE TABLE table_33871 ("Week" FLOAT, "Date" TEXT, "Opponent" TEXT, "Result" TEXT, "Attendance" FLOAT)

What is the sum of the weeks during which the Redskins played against the Houston Oilers and had more than 54,582 fans in attendance?
SELECT SUM("Week") FROM table_33871 WHERE "Opponent" = 'houston oilers' AND "Attendance" > '54,582'
SELECT SUM("Week") FROM "table_33871" WHERE "Attendance" > '54,582' AND "Opponent" = 'houston oilers'