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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 | 2 |
| 3 | 11 |
| 4 | 88 |
| 5 | 1756 |
| 6 | 55005 |
| 7 | 3706910 |
| 8 | 487165419 |
| 9 | 121319839455 |
[1,2,11,88,1756,55005,3706910,487165419, 121319839455] |