The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 81 |
| 2 | 3375 |
| 3 | 147825 |
| 4 | 6526575 |
| 5 | 288507825 |
| 6 | 12755926575 |
| 7 | 563999907825 |
| 8 | 24937217326575 |
| 9 | 1102598111307825 |
| 10 | 48751338478726575 |
| 11 | 2155538829022707825 |
| 12 | 95307078736540126575 |
| 13 | 4213999366856734107825 |
| 14 | 186321844088731401526575 |
[81,3375,147825,6526575,288507825,12755926575, 563999907825,24937217326575,1102598111307825, 48751338478726575,2155538829022707825, 95307078736540126575,4213999366856734107825, 186321844088731401526575] |