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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | 3 |
| 4 | 4 |
| 5 | 4 |
| 6 | 3 |
| 7 | 4 |
| 8 | 4 |
| 9 | 9 |
| 10 | 10 |
| 11 | 10 |
| 12 | 12 |
| 13 | 13 |
| 14 | 13 |
| 15 | 12 |
| 16 | 13 |
| 17 | 13 |
| 18 | 9 |
| 19 | 10 |
| 20 | 10 |
| 21 | 12 |
| 22 | 13 |
| 23 | 13 |
| 24 | 12 |
| 25 | 13 |
| 26 | 13 |
| 27 | 27 |
| 28 | 28 |
| 29 | 28 |
| 30 | 30 |
| 31 | 31 |
| 32 | 31 |
| 33 | 30 |
| 34 | 31 |
| 35 | 31 |
| 36 | 36 |
| 37 | 37 |
| 38 | 37 |
| 39 | 39 |
| 40 | 40 |
| 41 | 40 |
| 42 | 39 |
| 43 | 40 |
| 44 | 40 |
| 45 | 36 |
| 46 | 37 |
| 47 | 37 |
| 48 | 39 |
| 49 | 40 |
| 50 | 40 |
| 51 | 39 |
| 52 | 40 |
| 53 | 40 |
| 54 | 27 |
| 55 | 28 |
| 56 | 28 |
| 57 | 30 |
| 58 | 31 |
| 59 | 31 |
| 60 | 30 |
| 61 | 31 |
| 62 | 31 |
| 63 | 36 |
| 64 | 37 |
| 65 | 37 |
| 66 | 39 |
| 67 | 40 |
[0,1,1,3,4,4,3,4,4,9,10,10,12,13,13,12,13,13,9,10, 10,12,13,13,12,13,13,27,28,28,30,31,31,30,31,31, 36,37,37,39,40,40,39,40,40,36,37,37,39,40,40,39, 40,40,27,28,28,30,31,31,30,31,31,36,37,37,39,40] |