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| n | a(n) |
|---|---|
| 1 | 10 |
| 2 | 61 |
| 3 | 218 |
| 4 | 1878 |
| 5 | 9350 |
| 6 | 57243 |
| 7 | 352480 |
| 8 | 2438528 |
| 9 | 15405064 |
| 10 | 102528319 |
| 11 | 707008477 |
[10,61,218,1878,9350,57243,352480,2438528, 15405064,102528319,707008477] |