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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 8 |
| 3 | 1606 |
| 4 | 312604 |
| 5 | 9842070647 |
| 6 | 264043688162138 |
[4,8,1606,312604,9842070647,264043688162138] |