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| n | a(n) |
|---|---|
| 1 | 601 |
| 2 | 3015 |
| 3 | 17447 |
| 4 | 92217 |
| 5 | 480456 |
| 6 | 2547757 |
| 7 | 13460633 |
| 8 | 71027915 |
| 9 | 375675337 |
| 10 | 1985308048 |
| 11 | 10482759493 |
| 12 | 55378851627 |
| 13 | 292644335768 |
| 14 | 1546162330270 |
| 15 | 8168095347942 |
| 16 | 43152835319622 |
| 17 | 227991513370735 |
| 18 | 1204546728063170 |
[601,3015,17447,92217,480456,2547757,13460633, 71027915,375675337,1985308048,10482759493, 55378851627,292644335768,1546162330270, 8168095347942,43152835319622,227991513370735, 1204546728063170] |