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| n | a(n) |
|---|---|
| 1 | 39 |
| 2 | 3882 |
| 3 | 260847 |
| 4 | 16770378 |
| 5 | 1073708139 |
| 6 | 68719317138 |
| 7 | 4398045774015 |
| 8 | 281474973368562 |
| 9 | 18014398494540075 |
| 10 | 1152921504540787050 |
| 11 | 73786976294548799919 |
| 12 | 4722366482868386923002 |
| 13 | 302231454903651857859147 |
| 14 | 19342813113834043441414818 |
| 15 | 1237940039285380175041135359 |
| 16 | 79228162514264337168342188898 |
[39,3882,260847,16770378,1073708139,68719317138, 4398045774015,281474973368562,18014398494540075, 1152921504540787050,73786976294548799919, 4722366482868386923002,302231454903651857859147, 19342813113834043441414818, 1237940039285380175041135359, 79228162514264337168342188898] |