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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 12 |
| 3 | 40 |
| 4 | 252 |
| 5 | 880 |
| 6 | 10880 |
| 7 | 75852 |
| 8 | 715816960 |
| 9 | 62549517598720 |
[2,12,40,252,880,10880,75852,715816960, 62549517598720] |