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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 4 |
| 5 | 5 |
| 6 | 7 |
| 7 | 8 |
| 8 | 10 |
| 9 | 11 |
| 10 | 13 |
| 11 | 14 |
| 12 | 16 |
| 13 | 17 |
| 14 | 20 |
| 15 | 22 |
| 16 | 23 |
| 17 | 25 |
| 18 | 26 |
| 19 | 31 |
| 20 | 32 |
| 21 | 34 |
| 22 | 35 |
| 23 | 40 |
| 24 | 41 |
| 25 | 43 |
| 26 | 44 |
| 27 | 50 |
| 28 | 52 |
| 29 | 53 |
| 30 | 61 |
| 31 | 62 |
| 32 | 70 |
| 33 | 71 |
| 34 | 80 |
[0,1,2,4,5,7,8,10,11,13,14,16,17,20,22,23,25,26, 31,32,34,35,40,41,43,44,50,52,53,61,62,70,71,80] |