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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 160 |
| 3 | 3406 |
| 4 | 561271 |
| 5 | 28384610 |
| 6 | 416592852 |
| 7 | 44447452442 |
| 8 | 1424312724034 |
| 9 | 13770911283918 |
| 10 | 1035117249643794 |
| 11 | 24070178476723034 |
| 12 | 173702345363760195 |
| 13 | 10115576398329878340 |
| 14 | 185469670935326613615 |
| 15 | 1072779045109238566061 |
[3,160,3406,561271,28384610,416592852,44447452442, 1424312724034,13770911283918,1035117249643794, 24070178476723034,173702345363760195, 10115576398329878340,185469670935326613615, 1072779045109238566061] |