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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 2 | 2 |
| 3 | 38 |
| 4 | 141 |
| 5 | 3468 |
| 6 | 36990 |
| 7 | 36990 |
[2,38,141,3468,36990,36990] |