Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_245694_4 ( season INTEGER, us_open_cup VARCHAR )

### Question ###
Name the least season for round of 32

### Accurate SQL ###

SELECT MIN(season) FROM table_245694_4 WHERE us_open_cup = "Round of 32"