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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 2 |
| 3 | 2 |
| 4 | 2 |
| 5 | 1458855 |
| 6 | 1790478 |
| 7 | 429990136 |
| 8 | 4475873320 |
| 9 | 1979414080360 |
[2,2,2,2,1458855,1790478,429990136,4475873320, 1979414080360] |