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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 9 |
| 3 | 95 |
| 4 | 5005 |
| 5 | 709083 |
| 6 | 311676959 |
| 7 | 417293944115 |
| 8 | 1717065757366333 |
[1,9,95,5005,709083,311676959,417293944115, 1717065757366333] |