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| n | a(n) |
|---|---|
| 1 | 51 |
| 2 | 716 |
| 3 | 52680 |
| 4 | 3668759 |
| 5 | 266779524 |
| 6 | 19227454407 |
| 7 | 1386576216443 |
| 8 | 100026008988909 |
| 9 | 7214505515214571 |
| 10 | 520380715850845302 |
| 11 | 37534653006701646356 |
| 12 | 2707344505456485382130 |
| 13 | 195278730937825588935157 |
[51,716,52680,3668759,266779524,19227454407, 1386576216443,100026008988909,7214505515214571, 520380715850845302,37534653006701646356, 2707344505456485382130,195278730937825588935157] |