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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 48 |
| 3 | 5215 |
| 4 | 43930979 |
| 5 | 8221176288381971 |
| 6 | 237472642129791861355082716048930 |
| 7 | 59916111345562665920456160598356741759066440491193682529746704653 |
[3,48,5215,43930979,8221176288381971, 237472642129791861355082716048930, 59916111345562665920456160598356741759066440491193\ 682529746704653] |