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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 1 | 90 |
| 2 | 40682250 |
| 3 | 81364500 |
| 4 | 105773850 |
| 5 | 423095400 |
| 6 | 1798155450 |
| 7 | 14385243600 |
[90,40682250,81364500,105773850,423095400, 1798155450,14385243600] |