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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 50 |
| 4 | 5036 |
| 5 | 1650722 |
| 6 | 1726180511 |
| 7 | 5772723512117 |
| 8 | 61704243727319597 |
| 9 | 2108342605082097217766 |
| 10 | 230275999931688657463304318 |
| 11 | 80396959992514189225966415632361 |
[1,2,50,5036,1650722,1726180511,5772723512117, 61704243727319597,2108342605082097217766, 230275999931688657463304318, 80396959992514189225966415632361] |