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| n | a(n) |
|---|---|
| 6 | 4051 |
| 7 | 114402 |
| 8 | 1918083 |
| 9 | 24917060 |
| 10 | 277491084 |
| 11 | 2788377264 |
| 12 | 26047147641 |
| 13 | 230519395506 |
| 14 | 1957678084920 |
| 15 | 16097696173138 |
| 16 | 129006208397535 |
| 17 | 1012503732847524 |
| 18 | 7811457988379140 |
| 19 | 59410698772806630 |
| 20 | 446452429135687776 |
| 21 | 3320813986603421328 |
| 22 | 24485059125388934799 |
[4051,114402,1918083,24917060,277491084, 2788377264,26047147641,230519395506,1957678084920, 16097696173138,129006208397535,1012503732847524, 7811457988379140,59410698772806630, 446452429135687776,3320813986603421328, 24485059125388934799] |