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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 | 7 |
| 3 | 206 |
| 4 | 18155 |
| 5 | 3340366 |
| 6 | 1345907216 |
| 7 | 965180428296 |
| 8 | 1192995518065240 |
[1,7,206,18155,3340366,1345907216,965180428296, 1192995518065240] |