| n | a(n) |
|---|---|
| 1 | 30 |
| 2 | 858 |
| 3 | 1722 |
| 4 | 66198 |
| 5 | 2214408306 |
| 6 | 24423128562 |
| 7 | 432749205173838 |
| 8 | 14737133470010574 |
| 9 | 550843391309130318 |
| 10 | 244197000982499715087866346 |
| 11 | 554079914617070801288578559178 |
| 12 | 1910667181420507984555759916338506 |
[30,858,1722,66198,2214408306,24423128562, 432749205173838,14737133470010574, 550843391309130318,244197000982499715087866346, 554079914617070801288578559178, 1910667181420507984555759916338506] |