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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 17 |
| 2 | 203 |
| 3 | 2101 |
| 4 | 20163 |
| 5 | 184821 |
| 6 | 1643251 |
| 7 | 14298917 |
| 8 | 122461955 |
| 9 | 1036190485 |
| 10 | 8684988819 |
| 11 | 72248167173 |
| 12 | 597363137827 |
| 13 | 4914549713909 |
| 14 | 40265910006707 |
| 15 | 328773866154469 |
| 16 | 2676717032006979 |
| 17 | 21739418975585493 |
[1,17,203,2101,20163,184821,1643251,14298917, 122461955,1036190485,8684988819,72248167173, 597363137827,4914549713909,40265910006707, 328773866154469,2676717032006979, 21739418975585493] |