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| n | a(n) |
|---|---|
| 1 | 12 |
| 2 | 222 |
| 3 | 5609 |
| 4 | 122999 |
| 5 | 2812956 |
| 6 | 64074980 |
| 7 | 1459489751 |
| 8 | 33247715499 |
| 9 | 757352624211 |
| 10 | 17251241408116 |
[12,222,5609,122999,2812956,64074980,1459489751, 33247715499,757352624211,17251241408116] |