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| n | a(n) |
|---|---|
| 1 | 57 |
| 2 | 4995 |
| 3 | 2071311 |
| 4 | 4099186545 |
| 5 | 38883961392081 |
| 6 | 1772313933013227273 |
| 7 | 388756746462464273412765 |
| 8 | 410796134340987241848792211659 |
| 9 | 2092643007412378548345728130194640495 |
[57,4995,2071311,4099186545,38883961392081, 1772313933013227273,388756746462464273412765, 410796134340987241848792211659, 2092643007412378548345728130194640495] |