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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 | 4 |
| 3 | 26 |
| 4 | 346 |
| 5 | 7514 |
| 6 | 640643 |
| 7 | 104619164 |
| 8 | 49892724623 |
[2,4,26,346,7514,640643,104619164,49892724623] |