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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 | 18 |
| 3 | 182 |
| 4 | 1828 |
| 5 | 98793 |
| 6 | 987931 |
| 7 | 4349076 |
| 8 | 82549802 |
| 9 | 450388721 |
| 10 | 5291493974 |
| 11 | 72883660263 |
| 12 | 476539957100 |
[2,18,182,1828,98793,987931,4349076,82549802, 450388721,5291493974,72883660263,476539957100] |