| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 17 |
| 3 | 355 |
| 4 | 7715 |
| 5 | 203413 |
| 6 | 492527 |
| 7 | 49601051 |
| 8 | 1823359051 |
| 9 | 16684019407 |
| 10 | 186004308017 |
| 11 | 22757931053507 |
| 12 | 298630937704541 |
| 13 | 50872538998767329 |
| 14 | 51223731720255509 |
| 15 | 103063783892301061 |
| 16 | 7045407930432340853 |
[1,17,355,7715,203413,492527,49601051,1823359051, 16684019407,186004308017,22757931053507, 298630937704541,50872538998767329, 51223731720255509,103063783892301061, 7045407930432340853] |