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 21, 1975 | at Philadelphia Eagles | W 23–14 | 60798.0 |
| 2.0 | September 28, 1975 | at Washington Redskins | L 49–13 | 54953.0 |
| 3.0 | October 5, 1975 | at St. Louis Cardinals | L 26–14 | 44919.0 |
| 4.0 | October 12, 1975 | Dallas Cowboys | L 13–7 | 56511.0 |
| 5.0 | October 20, 1975 | at Buffalo Bills | W 17–14 | 79428.0 |
| 6.0 | October 25, 1975 | St. Louis Cardinals | L 20–13 | 49598.0 |
| 7.0 | November 1, 1975 | San Diego Chargers | W 35–24 | 52032.0 |
| 8.0 | November 9, 1975 | Washington Redskins | L 21–13 | 57242.0 |
| 9.0 | November 16, 1975 | Philadelphia Eagles | L 13–10 | 53434.0 |
| 10.0 | November 23, 1975 | at Green Bay Packers | L 40–14 | 50150.0 |
| 11.0 | November 30, 1975 | at Dallas Cowboys | L 14–3 | 53329.0 |
| 12.0 | December 7, 1975 | Baltimore Colts | L 21–0 | 49863.0 |
| 13.0 | December 14, 1975 | New Orleans Saints | W 28–14 | 40150.0 |
| 14.0 | December 21, 1975 | at San Francisco 49ers | W 26–23 | 34354.0 |
Question:
How many weeks have an Opponent of at san francisco 49ers, and an Attendance smaller than 34,354?
Answer:
0.0