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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 2 |
| 2 | 26 |
| 3 | 362 |
| 4 | 5042 |
| 5 | 70226 |
| 6 | 978122 |
| 7 | 13623482 |
| 8 | 189750626 |
| 9 | 2642885282 |
| 10 | 36810643322 |
| 11 | 512706121226 |
| 12 | 7141075053842 |
| 13 | 99462344632562 |
| 14 | 1385331749802026 |
| 15 | 19295182152595802 |
| 16 | 268747218386539202 |
| 17 | 3743165875258953026 |
[2,2,26,362,5042,70226,978122,13623482,189750626, 2642885282,36810643322,512706121226,7141075053842, 99462344632562,1385331749802026,19295182152595802, 268747218386539202,3743165875258953026] |