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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 1 | 7 |
| 2 | 16638 |
| 3 | 3631421 |
| 4 | 141521639 |
| 5 | 3087218304 |
[7,16638,3631421,141521639,3087218304] |