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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 15 |
| 4 | 22 |
| 5 | 58 |
| 6 | 109 |
| 7 | 157 |
| 8 | 1030 |
| 9 | 1071 |
| 10 | 1274 |
| 11 | 2008 |
| 12 | 2322 |
| 13 | 5269 |
| 14 | 151710 |
[1,2,15,22,58,109,157,1030,1071,1274,2008,2322, 5269,151710] |