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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 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 9 |
| 5 | 33 |
| 6 | 105 |
| 7 | 825 |
| 8 | 13503 |
| 9 | 390699 |
| 10 | 9339771 |
| 11 | 391769047 |
| 12 | 28305812373 |
| 13 | 3390227207577 |
[1,1,1,9,33,105,825,13503,390699,9339771, 391769047,28305812373,3390227207577] |