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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 11 |
| 3 | 125 |
| 4 | 1419 |
| 5 | 16109 |
| 6 | 182875 |
| 7 | 2076061 |
| 8 | 23568171 |
| 9 | 267554125 |
| 10 | 3037368059 |
| 11 | 34481265149 |
| 12 | 391443388875 |
| 13 | 4443802338221 |
| 14 | 50447599275931 |
| 15 | 572698801388125 |
| 16 | 6501477212373099 |
| 17 | 73807044541656589 |
| 18 | 837883398807714875 |
| 19 | 9511945565051489981 |
[0,1,11,125,1419,16109,182875,2076061,23568171, 267554125,3037368059,34481265149,391443388875, 4443802338221,50447599275931,572698801388125, 6501477212373099,73807044541656589, 837883398807714875,9511945565051489981] |