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| n | a(n) |
|---|---|
| 1 | 578 |
| 2 | 12920 |
| 3 | 235936 |
| 4 | 3695555 |
| 5 | 51264185 |
| 6 | 644182816 |
| 7 | 7460893864 |
| 8 | 80676054597 |
| 9 | 822720588842 |
| 10 | 7976326518730 |
| 11 | 73999362424318 |
| 12 | 660467507825188 |
| 13 | 5696611476327209 |
| 14 | 47660470235252790 |
| 15 | 388033944154755006 |
[578,12920,235936,3695555,51264185,644182816, 7460893864,80676054597,822720588842,7976326518730, 73999362424318,660467507825188,5696611476327209, 47660470235252790,388033944154755006] |