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| n | a(n) |
|---|---|
| 1 | 53 |
| 2 | 853 |
| 3 | 3613 |
| 4 | 24344293 |
| 5 | 72642169573 |
| 6 | 2576442067869429759973 |
| 7 | 38900816605808456499199973 |
| 8 | 26070192823309041523916799973 |
| 9 | 17978533302590087193373917833428087202627190783999999973 |
[53,853,3613,24344293,72642169573, 2576442067869429759973,38900816605808456499199973, 26070192823309041523916799973, 17978533302590087193373917833428087202627190783999\ 999973] |