| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 74 |
| 2 | 2738 |
| 3 | 67562 |
| 4 | 1251266 |
| 5 | 18559274 |
| 6 | 229731890 |
| 7 | 2441850890 |
| 8 | 22759419650 |
| 9 | 189032223370 |
| 10 | 1417045988658 |
| 11 | 9687517561002 |
| 12 | 60920563283394 |
| 13 | 354975721241706 |
| 14 | 1928517866520498 |
| 15 | 9821667099910602 |
| 16 | 47112663470291970 |
[1,74,2738,67562,1251266,18559274,229731890, 2441850890,22759419650,189032223370,1417045988658, 9687517561002,60920563283394,354975721241706, 1928517866520498,9821667099910602, 47112663470291970] |