| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 17 |
| 3 | 561 |
| 4 | 19041 |
| 5 | 646817 |
| 6 | 21972721 |
| 7 | 746425681 |
| 8 | 25356500417 |
| 9 | 861374588481 |
| 10 | 29261379507921 |
| 11 | 994025528680817 |
| 12 | 33767606595639841 |
| 13 | 1147104598723073761 |
| 14 | 38967788749988868017 |
| 15 | 1323757712900898438801 |
| 16 | 44968794449880558051201 |
| 17 | 1527615253583038075302017 |
[1,17,561,19041,646817,21972721,746425681, 25356500417,861374588481,29261379507921, 994025528680817,33767606595639841, 1147104598723073761,38967788749988868017, 1323757712900898438801,44968794449880558051201, 1527615253583038075302017] |