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_29266 ( "No. in series" text, "No. in season" text, "Title" text, "Directed by" text, "Written by" text, "Original air date" text, "Production code" text )

### Question ###
What is the production code for the episode written by Kat Likkel & Denise Downer?

### Accurate SQL ###

SELECT "Production code" FROM table_29266 WHERE "Written by" = 'Kat Likkel & Denise Downer'