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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 6 |
| 4 | 9 |
| 5 | 13 |
| 6 | 19 |
| 7 | 26 |
| 8 | 34 |
| 9 | 46 |
| 10 | 57 |
| 11 | 70 |
| 12 | 81 |
| 13 | 94 |
| 14 | 113 |
| 15 | 123 |
| 16 | 137 |
| 17 | 151 |
| 18 | 168 |
| 19 | 184 |
| 20 | 205 |
| 21 | 217 |
| 22 | 232 |
[1,2,6,9,13,19,26,34,46,57,70,81,94,113,123,137, 151,168,184,205,217,232] |