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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 17 |
| 3 | 244 |
| 4 | 5283 |
| 5 | 156092 |
| 6 | 5954547 |
| 7 | 282221828 |
| 8 | 16159327961 |
| 9 | 1094056231572 |
| 10 | 86116276633357 |
| 11 | 7773114989571400 |
| 12 | 795480206815177651 |
| 13 | 91417037615848058160 |
| 14 | 11701283925663217478843 |
| 15 | 1656436690705751478232180 |
| 16 | 257730676653629520748175377 |
| 17 | 43837005194184348815823808500 |
[1,2,17,244,5283,156092,5954547,282221828, 16159327961,1094056231572,86116276633357, 7773114989571400,795480206815177651, 91417037615848058160,11701283925663217478843, 1656436690705751478232180, 257730676653629520748175377, 43837005194184348815823808500] |