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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 109 |
| 3 | 3723 |
| 4 | 172091 |
| 5 | 7466627 |
| 6 | 329985827 |
| 7 | 14526103064 |
| 8 | 640011857446 |
| 9 | 28192246592564 |
| 10 | 1241921389868057 |
| 11 | 54708244420668156 |
| 12 | 2409976614356023808 |
| 13 | 106162841585764737411 |
| 14 | 4676622598537493878129 |
| 15 | 206011798163918590188603 |
[0,109,3723,172091,7466627,329985827,14526103064, 640011857446,28192246592564,1241921389868057, 54708244420668156,2409976614356023808, 106162841585764737411,4676622598537493878129, 206011798163918590188603] |