| n | a(n) |
|---|---|
| 1 | 16 |
| 2 | 401 |
| 3 | 5930 |
| 4 | 91370 |
| 5 | 1423344 |
| 6 | 22207589 |
| 7 | 346263718 |
| 8 | 5399605493 |
| 9 | 84198470831 |
| 10 | 1312961721912 |
| 11 | 20473797385819 |
| 12 | 319260349892947 |
| 13 | 4978419327889986 |
| 14 | 77631501971204037 |
| 15 | 1210554922385559732 |
| 16 | 18876914499872038074 |
[16,401,5930,91370,1423344,22207589,346263718, 5399605493,84198470831,1312961721912, 20473797385819,319260349892947,4978419327889986, 77631501971204037,1210554922385559732, 18876914499872038074] |