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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 6 |
| 3 | 78 |
| 4 | 1735 |
| 5 | 59246 |
| 6 | 2885772 |
| 7 | 190320239 |
| 8 | 16347310234 |
| 9 | 1774441830858 |
| 10 | 237627036224047 |
| 11 | 38497690772499518 |
| 12 | 7423393488778249536 |
| 13 | 1680457375599950641631 |
| 14 | 441370935373373671881586 |
[1,6,78,1735,59246,2885772,190320239,16347310234, 1774441830858,237627036224047,38497690772499518, 7423393488778249536,1680457375599950641631, 441370935373373671881586] |