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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 236 |
| 3 | 6013 |
| 4 | 136006 |
| 5 | 3214459 |
| 6 | 75989207 |
| 7 | 1794078025 |
| 8 | 42359577845 |
| 9 | 1000164240246 |
| 10 | 23615143328742 |
| 11 | 557583249248412 |
| 12 | 13165241600498413 |
| 13 | 310847913490788822 |
| 14 | 7339510240639622403 |
| 15 | 173295068642865220584 |
| 16 | 4091714546975134949491 |
[3,236,6013,136006,3214459,75989207,1794078025, 42359577845,1000164240246,23615143328742, 557583249248412,13165241600498413, 310847913490788822,7339510240639622403, 173295068642865220584,4091714546975134949491] |