| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 27 |
| 4 | 173 |
| 5 | 2213 |
| 6 | 1239065 |
| 7 | 1178661599 |
| 8 | 537440137205 |
| 9 | 4498684093801517 |
| 10 | 397866367316299082571 |
| 11 | 521505356993412536753131 |
| 12 | 132101530036167237378528466705275 |
| 13 | 1271578712351105027090700191735899429869 |
| 14 | 33189191375129970683761258266358875688948789 |
[1,3,27,173,2213,1239065,1178661599,537440137205, 4498684093801517,397866367316299082571, 521505356993412536753131, 132101530036167237378528466705275, 1271578712351105027090700191735899429869, 33189191375129970683761258266358875688948789] |