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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 64 |
| 3 | 777 |
| 4 | 9066 |
| 5 | 94613 |
| 6 | 874352 |
| 7 | 7359682 |
| 8 | 57010666 |
| 9 | 415293446 |
| 10 | 2875073417 |
| 11 | 18986652001 |
| 12 | 119735313147 |
| 13 | 722116564676 |
| 14 | 4175005844876 |
| 15 | 23202958004002 |
| 16 | 124286471443305 |
| 17 | 643293955874909 |
| 18 | 3224900899408007 |
| 19 | 15691805196356857 |
[6,64,777,9066,94613,874352,7359682,57010666, 415293446,2875073417,18986652001,119735313147, 722116564676,4175005844876,23202958004002, 124286471443305,643293955874909,3224900899408007, 15691805196356857] |