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| n | a(n) |
|---|---|
| 1 | 192 |
| 2 | 2472 |
| 3 | 31800 |
| 4 | 409128 |
| 5 | 5263608 |
| 6 | 67718760 |
| 7 | 871232952 |
| 8 | 11208812712 |
| 9 | 144206530680 |
| 10 | 1855283342568 |
| 11 | 23869073504568 |
| 12 | 307086608771880 |
| 13 | 3950810460600312 |
| 14 | 50828993677128552 |
| 15 | 653938381502821560 |
[192,2472,31800,409128,5263608,67718760,871232952, 11208812712,144206530680,1855283342568, 23869073504568,307086608771880,3950810460600312, 50828993677128552,653938381502821560] |