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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 3 |
| 4 | 6 |
| 5 | 9 |
| 6 | 13 |
| 7 | 17 |
| 8 | 23 |
| 9 | 29 |
| 10 | 36 |
| 11 | 43 |
| 12 | 50 |
| 13 | 58 |
| 14 | 68 |
| 15 | 79 |
| 16 | 90 |
| 17 | 101 |
| 18 | 112 |
| 19 | 123 |
| 20 | 138 |
| 21 | 153 |
| 22 | 168 |
| 23 | 183 |
| 24 | 198 |
| 25 | 213 |
| 26 | 232 |
[0,1,3,6,9,13,17,23,29,36,43,50,58,68,79,90,101, 112,123,138,153,168,183,198,213,232] |