| n | a(n) |
|---|---|
| 1 | 21 |
| 2 | 348 |
| 3 | 3226 |
| 4 | 159324 |
| 5 | 3247879 |
| 6 | 120453362 |
| 7 | 4582634341 |
| 8 | 154482346317 |
| 9 | 5662974500151 |
| 10 | 210384261219346 |
| 11 | 7559261180323415 |
| 12 | 276878327636310469 |
| 13 | 10159747543598303848 |
| 14 | 370022548604712000777 |
| 15 | 13533405466101387449313 |
[21,348,3226,159324,3247879,120453362,4582634341, 154482346317,5662974500151,210384261219346, 7559261180323415,276878327636310469, 10159747543598303848,370022548604712000777, 13533405466101387449313] |