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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 389 |
| 3 | 4507 |
| 4 | 176353 |
| 5 | 5678641 |
| 6 | 203062719 |
| 7 | 7338573888 |
| 8 | 266405977942 |
| 9 | 9728685869763 |
| 10 | 355450127061109 |
| 11 | 13000785497304692 |
| 12 | 475626104635308752 |
| 13 | 17403283800560540891 |
| 14 | 636836368854527405026 |
| 15 | 23304330631071793509400 |
[1,389,4507,176353,5678641,203062719,7338573888, 266405977942,9728685869763,355450127061109, 13000785497304692,475626104635308752, 17403283800560540891,636836368854527405026, 23304330631071793509400] |