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 | Record | Game Site | Attendance |
| --- | --- | --- | --- | --- | --- | --- |
| 1.0 | September 30, 1956 | Chicago Bears | W 28–21 | 1–0 | Memorial Stadium | 45221.0 |
| 2.0 | October 6, 1956 | Detroit Lions | L 14–31 | 1–1 | Memorial Stadium | 42622.0 |
| 3.0 | October 14, 1956 | at Green Bay Packers | L 33–38 | 1–2 | Milwaukee County Stadium | 24214.0 |
| 4.0 | October 21, 1956 | at Chicago Bears | L 27–58 | 1–3 | Wrigley Field | 48364.0 |
| 5.0 | October 28, 1956 | Green Bay Packers | W 28–21 | 2–3 | Memorial Stadium | 40086.0 |
| 6.0 | November 11, 1956 | at Cleveland Browns | W 21–7 | 3–3 | Cleveland Stadium | 42404.0 |
| 7.0 | November 18, 1956 | at Detroit Lions | L 3–27 | 3–4 | Tiger Stadium | 55788.0 |
| 8.0 | November 25, 1956 | Los Angeles Rams | W 56–21 | 4–4 | Memorial Stadium | 40321.0 |
| 9.0 | December 2, 1956 | San Francisco 49ers | L 17–20 | 4–5 | Memorial Stadium | 37227.0 |
| 10.0 | December 9, 1956 | at Los Angeles Rams | L 7–31 | 4–6 | Los Angeles Memorial Coliseum | 51037.0 |
| 11.0 | December 16, 1956 | at San Francisco 49ers | L 17–30 | 4–7 | Kezar Stadium | 43791.0 |
| 12.0 | December 23, 1956 | Washington Redskins | W 19–17 | 5–7 | Memorial Stadium | 32944.0 |
Question:
What was the Attendance at the Game with a Result of w 21–7?
Answer:
42404.0