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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 4 |
| 3 | 64 |
| 4 | 2072 |
| 5 | 106738 |
| 6 | 7743880 |
| 7 | 735490024 |
| 8 | 87138728592 |
[1,4,64,2072,106738,7743880,735490024,87138728592] |