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| n | a(n) |
|---|---|
| 1 | 7 |
| 2 | 168 |
| 3 | 2899 |
| 4 | 48800 |
| 5 | 781249 |
| 6 | 12552490 |
| 7 | 199768074 |
| 8 | 3172621401 |
| 9 | 50293852540 |
| 10 | 796576432352 |
| 11 | 12609422542725 |
| 12 | 199544688476775 |
| 13 | 3157253422434725 |
| 14 | 49950371583901021 |
| 15 | 790214074604432701 |
[7,168,2899,48800,781249,12552490,199768074, 3172621401,50293852540,796576432352, 12609422542725,199544688476775,3157253422434725, 49950371583901021,790214074604432701] |