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| n | a(n) |
|---|---|
| 3 | 575 |
| 4 | 865 |
| 5 | 39743 |
| 6 | 19153 |
| 7 | 3681784 |
| 8 | 18198125 |
| 9 | 325151875 |
| 10 | 226462663 |
| 11 | 218431158848 |
| 12 | 163390785768 |
| 13 | 275577122835000 |
| 14 | 216187828065000 |
| 15 | 172736941569984 |
| 16 | 1121674137386517 |
| 17 | 4534605234349771581 |
| 18 | 3776294388104363125 |
| 19 | 21799582086436073920000 |
| 20 | 18520810592837638076992 |
[575,865,39743,19153,3681784,18198125,325151875, 226462663,218431158848,163390785768, 275577122835000,216187828065000,172736941569984, 1121674137386517,4534605234349771581, 3776294388104363125,21799582086436073920000, 18520810592837638076992] |