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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 12 |
| 3 | 92 |
| 4 | 673 |
| 5 | 5912 |
| 6 | 48298 |
| 7 | 396846 |
| 8 | 3240527 |
| 9 | 26241353 |
| 10 | 211785583 |
| 11 | 1703772887 |
| 12 | 13679840407 |
| 13 | 109689414233 |
| 14 | 878752161168 |
| 15 | 7035829547262 |
| 16 | 56311795445487 |
[1,12,92,673,5912,48298,396846,3240527,26241353, 211785583,1703772887,13679840407,109689414233, 878752161168,7035829547262,56311795445487] |