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_29566686_1 ( clubs_remaining INTEGER, leagues_entering_at_this_round VARCHAR )

### Question ###
What is the maximum number of clubs remaining when the league entering at this round was allsvenskan?

### Accurate SQL ###

SELECT MIN(clubs_remaining) FROM table_29566686_1 WHERE leagues_entering_at_this_round = "Allsvenskan"