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 18, 1977 | Kansas City Chiefs | W 21–17 | 58185.0 |
| 2.0 | September 26, 1977 | at Cleveland Browns | L 30–27 | 76418.0 |
| 3.0 | October 2, 1977 | at New York Jets | L 30–27 | 38227.0 |
| 4.0 | October 9, 1977 | Seattle Seahawks | W 31–0 | 45927.0 |
| 5.0 | October 16, 1977 | at San Diego Chargers | W 24–20 | 50327.0 |
| 6.0 | October 23, 1977 | Baltimore Colts | W 17–3 | 60958.0 |
| 7.0 | October 30, 1977 | New York Jets | W 24–13 | 61042.0 |
| 8.0 | November 6, 1977 | Buffalo Bills | L 24–14 | 60263.0 |
| 9.0 | November 13, 1977 | at Miami Dolphins | L 17–5 | 67502.0 |
| 10.0 | November 20, 1977 | at Buffalo Bills | W 20–7 | 27598.0 |
| 11.0 | November 27, 1977 | Philadelphia Eagles | W 14–6 | 57893.0 |
| 12.0 | December 4, 1977 | at Atlanta Falcons | W 16–10 | 57911.0 |
| 13.0 | December 11, 1977 | Miami Dolphins | W 14–10 | 61064.0 |
| 14.0 | December 18, 1977 | at Baltimore Colts | L 30–24 | 42250.0 |
Question:
What opponent has a Result of w 31–0?
Answer:
Seattle Seahawks