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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 | 6 |
| 3 | 18 |
| 4 | 102 |
| 5 | 40936 |
| 6 | 4252528 |
| 7 | 7112715120 |
[2,6,18,102,40936,4252528,7112715120] |