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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 161 |
| 3 | 2716 |
| 4 | 61040 |
| 5 | 1339251 |
| 6 | 29718190 |
| 7 | 651323279 |
| 8 | 14313363492 |
| 9 | 314536084653 |
| 10 | 6918341058099 |
| 11 | 152091254605720 |
| 12 | 3343887108564234 |
| 13 | 73523096683740016 |
| 14 | 1616580075894214591 |
| 15 | 35544361135805663463 |
| 16 | 781529666441604010638 |
[1,161,2716,61040,1339251,29718190,651323279, 14313363492,314536084653,6918341058099, 152091254605720,3343887108564234, 73523096683740016,1616580075894214591, 35544361135805663463,781529666441604010638] |