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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 2 |
| 3 | 4 |
| 4 | 7 |
| 5 | 7 |
| 6 | 11 |
| 7 | 12 |
| 8 | 14 |
| 9 | 16 |
| 10 | 17 |
| 11 | 19 |
| 12 | 21 |
| 13 | 24 |
| 14 | 23 |
| 15 | 28 |
| 16 | 26 |
| 17 | 31 |
| 18 | 29 |
| 19 | 36 |
| 20 | 33 |
[0,2,4,7,7,11,12,14,16,17,19,21,24,23,28,26,31,29, 36,33] |