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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 1 |
| 5 | 2 |
| 6 | 2 |
| 7 | 2 |
| 8 | 2 |
| 9 | 4 |
| 10 | 2 |
| 11 | 3 |
| 12 | 4 |
| 13 | 4 |
| 14 | 4 |
| 15 | 5 |
| 16 | 4 |
| 17 | 6 |
| 18 | 7 |
| 19 | 6 |
| 20 | 6 |
| 21 | 8 |
| 22 | 8 |
| 23 | 9 |
| 24 | 10 |
| 25 | 10 |
| 26 | 10 |
| 27 | 12 |
| 28 | 12 |
| 29 | 14 |
| 30 | 16 |
| 31 | 14 |
| 32 | 16 |
| 33 | 18 |
| 34 | 18 |
| 35 | 20 |
| 36 | 22 |
| 37 | 23 |
| 38 | 24 |
| 39 | 26 |
| 40 | 26 |
| 41 | 28 |
| 42 | 32 |
| 43 | 32 |
| 44 | 35 |
| 45 | 38 |
| 46 | 38 |
| 47 | 40 |
| 48 | 44 |
| 49 | 45 |
| 50 | 48 |
| 51 | 52 |
| 52 | 54 |
| 53 | 58 |
| 54 | 62 |
| 55 | 62 |
| 56 | 66 |
| 57 | 71 |
| 58 | 74 |
| 59 | 78 |
| 60 | 84 |
| 61 | 86 |
| 62 | 92 |
| 63 | 98 |
| 64 | 100 |
| 65 | 106 |
| 66 | 112 |
| 67 | 116 |
| 68 | 122 |
[0,1,1,2,1,2,2,2,2,4,2,3,4,4,4,5,4,6,7,6,6,8,8,9, 10,10,10,12,12,14,16,14,16,18,18,20,22,23,24,26, 26,28,32,32,35,38,38,40,44,45,48,52,54,58,62,62, 66,71,74,78,84,86,92,98,100,106,112,116,122] |