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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 4 |
| 3 | 109 |
| 4 | 4771 |
| 5 | 575754 |
| 6 | 173216147 |
| 7 | 127727388127 |
| 8 | 234129105357081 |
| 9 | 1063459512165657876 |
[0,4,109,4771,575754,173216147,127727388127, 234129105357081,1063459512165657876] |