CREATE TABLE table_1136 ("Week" FLOAT, "Date" TEXT, "Opponent" TEXT, "Result" TEXT, "Record" TEXT, "Game Site" TEXT, "Attendance" FLOAT)

Name the total number of weeks for at cleveland browns
SELECT COUNT("Week") FROM table_1136 WHERE "Opponent" = 'at Cleveland Browns'
SELECT COUNT("Week") FROM "table_1136" WHERE "Opponent" = 'at Cleveland Browns'