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| n | a(n) |
|---|---|
| 1 | 1375080 |
| 2 | 8746524 |
| 3 | 56118016 |
| 4 | 361440380 |
| 5 | 2330996068 |
| 6 | 15032948568 |
| 7 | 96884873906 |
| 8 | 623803084898 |
| 9 | 4037252105050 |
| 10 | 26134202969838 |
| 11 | 169150585613348 |
| 12 | 1094526434714860 |
| 13 | 7080206352141686 |
| 14 | 45785350357781540 |
| 15 | 295992803793449890 |
[1375080,8746524,56118016,361440380,2330996068, 15032948568,96884873906,623803084898, 4037252105050,26134202969838,169150585613348, 1094526434714860,7080206352141686, 45785350357781540,295992803793449890] |