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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 | 3 |
| 3 | 20 |
| 4 | 464 |
| 5 | 30283 |
| 6 | 5897476 |
| 7 | 3394457868 |
| 8 | 5778059258273 |
| 9 | 29117129479453520 |
| 10 | 434446215594380010575 |
[1,3,20,464,30283,5897476,3394457868, 5778059258273,29117129479453520, 434446215594380010575] |