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| n | a(n) |
|---|---|
| 1 | 187 |
| 2 | 658450 |
| 3 | 2540446156 |
| 4 | 9810325806914 |
| 5 | 37884515848419250 |
| 6 | 146298576850884166522 |
| 7 | 564960990903273888822194 |
| 8 | 2181708996196484728947116626 |
| 9 | 8425102300382037852914721068050 |
[187,658450,2540446156,9810325806914, 37884515848419250,146298576850884166522, 564960990903273888822194, 2181708996196484728947116626, 8425102300382037852914721068050] |