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| n | a(n) |
|---|---|
| 1 | 15 |
| 2 | 203 |
| 3 | 2365 |
| 4 | 25601 |
| 5 | 270671 |
| 6 | 2827709 |
| 7 | 29422487 |
| 8 | 305525459 |
| 9 | 3170576253 |
| 10 | 32890537051 |
| 11 | 341164909807 |
| 12 | 3538555502557 |
| 13 | 36701472408455 |
| 14 | 380656870553721 |
| 15 | 3948062617070389 |
| 16 | 40947979951532603 |
| 17 | 424699049401817205 |
[15,203,2365,25601,270671,2827709,29422487, 305525459,3170576253,32890537051,341164909807, 3538555502557,36701472408455,380656870553721, 3948062617070389,40947979951532603, 424699049401817205] |