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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 12 |
| 4 | 20 |
| 5 | 38 |
| 6 | 45 |
| 7 | 46 |
| 8 | 105 |
| 9 | 117 |
| 10 | 143 |
| 11 | 214 |
| 12 | 1835 |
| 13 | 2931 |
| 14 | 7703 |
| 15 | 11542 |
| 16 | 19225 |
[1,2,12,20,38,45,46,105,117,143,214,1835,2931, 7703,11542,19225] |