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| n | a(n) |
|---|---|
| 8 | 4140 |
| 9 | 153063 |
| 10 | 3315645 |
| 11 | 55239525 |
| 12 | 786082275 |
| 13 | 10081916559 |
| 14 | 120278261103 |
| 15 | 1361959159275 |
| 16 | 14838761544750 |
| 17 | 157056039953670 |
| 18 | 1626124163724918 |
| 19 | 16555067600440590 |
| 20 | 166368479811851850 |
| 21 | 1655233308679110930 |
| 22 | 16341232769733507570 |
| 23 | 160366537782578273850 |
[4140,153063,3315645,55239525,786082275, 10081916559,120278261103,1361959159275, 14838761544750,157056039953670,1626124163724918, 16555067600440590,166368479811851850, 1655233308679110930,16341232769733507570, 160366537782578273850] |