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_26401898_2 ( week INTEGER, final_score VARCHAR )

### Question ###
Name the least week for l 26 42

### Accurate SQL ###

SELECT MIN(week) FROM table_26401898_2 WHERE final_score = "L 26–42"