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| n | a(n) |
|---|---|
| 1 | 4279 |
| 2 | 15708373 |
| 3 | 53870354874 |
| 4 | 184748227954044 |
| 5 | 634624599110230148 |
| 6 | 2178356930571051243772 |
| 7 | 7475436982938232742147042 |
| 8 | 25653586976687879862143282564 |
| 9 | 88036356618409766791811865605669 |
[4279,15708373,53870354874,184748227954044, 634624599110230148,2178356930571051243772, 7475436982938232742147042, 25653586976687879862143282564, 88036356618409766791811865605669] |