Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Week | Date | Opponent | Result | Attendance |
| --- | --- | --- | --- | --- |
| 1.0 | September 13, 1964 | at Boston Patriots | L 17–14 | 21126.0 |
| 2.0 | September 19, 1964 | Houston Oilers | L 42–28 | 26482.0 |
| 3.0 | September 27, 1964 | Kansas City Chiefs | L 21–9 | 18163.0 |
| 4.0 | October 3, 1964 | at Buffalo Bills | L 23–20 | 36451.0 |
| 5.0 | October 10, 1964 | at New York Jets | L 35–13 | 36499.0 |
| 6.0 | October 16, 1964 | at Boston Patriots | T 43–43 | 23279.0 |
| 7.0 | October 25, 1964 | Denver Broncos | W 40–7 | 17858.0 |
| 8.0 | November 1, 1964 | at San Diego Chargers | L 31–17 | 25557.0 |
| 9.0 | November 8, 1964 | at Kansas City Chiefs | L 42–7 | 21023.0 |
| 10.0 | November 15, 1964 | Houston Oilers | W 20–10 | 16375.0 |
| 11.0 | November 22, 1964 | New York Jets | W 35–26 | 15589.0 |
| 12.0 | November 29, 1964 | at Denver Broncos | T 20–20 | 15958.0 |
| 13.0 | December 6, 1964 | Buffalo Bills | W 16–13 | 18134.0 |
| 14.0 | December 20, 1964 | San Diego Chargers | W 21–20 | 20124.0 |
Question:
What was the week of the game played December 6, 1964?
Answer:
13.0