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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 82 |
| 3 | 2720 |
| 4 | 194568 |
| 5 | 26101232 |
| 6 | 5919004912 |
| 7 | 2103543163584 |
[6,82,2720,194568,26101232,5919004912, 2103543163584] |