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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 | 8 |
| 3 | 81 |
| 4 | 1481 |
| 5 | 51586 |
| 6 | 3492739 |
| 7 | 453853629 |
| 8 | 113299205109 |
| 9 | 54481875961523 |
[1,8,81,1481,51586,3492739,453853629,113299205109, 54481875961523] |