CREATE TABLE table_34193 ("Date" TEXT, "Round" TEXT, "Opponents" TEXT, "H / A" TEXT, "Result F \\u2013 A" TEXT, "Attendance" FLOAT)

Which round has an H/A of A with Notts County as opponents?
SELECT "Round" FROM table_34193 WHERE "H / A" = 'a' AND "Opponents" = 'notts county'
SELECT "Round" FROM "table_34193" WHERE "H / A" = 'a' AND "Opponents" = 'notts county'