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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 19 |
| 4 | 739 |
| 5 | 35641 |
| 6 | 3753721 |
| 7 | 500577499 |
| 8 | 91718242219 |
| 9 | 22737318482161 |
| 10 | 6983681901945841 |
| 11 | 2676021948941279779 |
| 12 | 1243547540389481251699 |
| 13 | 686920343453752746986281 |
| 14 | 446624144083900575607651561 |
| 15 | 336962029373243047762784366059 |
| 16 | 292073105918297230422637244241979 |
| 17 | 288329217381806896076167481522680801 |
| 18 | 321507277164646598826580516711872346081 |
| 19 | 402176512693739754388880316622683052031539 |
[1,1,19,739,35641,3753721,500577499,91718242219, 22737318482161,6983681901945841, 2676021948941279779,1243547540389481251699, 686920343453752746986281, 446624144083900575607651561, 336962029373243047762784366059, 292073105918297230422637244241979, 288329217381806896076167481522680801, 321507277164646598826580516711872346081, 402176512693739754388880316622683052031539] |