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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 | 145 |
| 4 | 2884 |
| 5 | 62517 |
| 6 | 1404472 |
| 7 | 32430749 |
| 8 | 763219988 |
| 9 | 18231473349 |
[1,8,145,2884,62517,1404472,32430749,763219988, 18231473349] |