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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 195 |
| 3 | 6150 |
| 4 | 238607 |
| 5 | 9958520 |
| 6 | 428855442 |
| 7 | 18742128588 |
| 8 | 825015103540 |
| 9 | 36426835430201 |
| 10 | 1610881122223657 |
| 11 | 71287590353047925 |
| 12 | 3155784624457534434 |
| 13 | 139723512923338940613 |
| 14 | 6186762308840035967958 |
| 15 | 273950648299765566159446 |
[6,195,6150,238607,9958520,428855442,18742128588, 825015103540,36426835430201,1610881122223657, 71287590353047925,3155784624457534434, 139723512923338940613,6186762308840035967958, 273950648299765566159446] |