| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 4 |
| 4 | 6 |
| 5 | 6 |
| 6 | 9 |
| 7 | 8 |
| 8 | 11 |
| 9 | 11 |
| 10 | 13 |
| 11 | 12 |
| 12 | 17 |
| 13 | 14 |
| 14 | 17 |
| 15 | 18 |
| 16 | 20 |
| 17 | 18 |
| 18 | 23 |
| 19 | 20 |
| 20 | 25 |
| 21 | 24 |
| 22 | 25 |
| 23 | 24 |
| 24 | 31 |
| 25 | 27 |
| 26 | 29 |
| 27 | 30 |
| 28 | 33 |
| 29 | 30 |
| 30 | 37 |
| 31 | 32 |
| 32 | 37 |
| 33 | 36 |
| 34 | 37 |
| 35 | 38 |
| 36 | 44 |
| 37 | 38 |
| 38 | 41 |
| 39 | 42 |
| 40 | 47 |
| 41 | 42 |
| 42 | 49 |
| 43 | 44 |
| 44 | 49 |
| 45 | 50 |
| 46 | 49 |
| 47 | 48 |
| 48 | 57 |
| 49 | 51 |
| 50 | 55 |
| 51 | 54 |
| 52 | 57 |
| 53 | 54 |
| 54 | 61 |
| 55 | 58 |
| 56 | 63 |
| 57 | 60 |
| 58 | 61 |
| 59 | 60 |
[1,3,4,6,6,9,8,11,11,13,12,17,14,17,18,20,18,23, 20,25,24,25,24,31,27,29,30,33,30,37,32,37,36,37, 38,44,38,41,42,47,42,49,44,49,50,49,48,57,51,55, 54,57,54,61,58,63,60,61,60] |