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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 0 |
| 5 | 1 |
| 6 | 0 |
| 7 | 1 |
| 8 | 1 |
| 9 | 2 |
| 10 | 0 |
| 11 | 2 |
| 12 | 2 |
| 13 | 4 |
| 14 | 2 |
| 15 | 3 |
| 16 | 2 |
| 17 | 5 |
| 18 | 3 |
| 19 | 6 |
| 20 | 6 |
| 21 | 8 |
| 22 | 4 |
| 23 | 8 |
| 24 | 7 |
| 25 | 10 |
| 26 | 6 |
| 27 | 9 |
| 28 | 8 |
| 29 | 13 |
| 30 | 11 |
| 31 | 16 |
| 32 | 15 |
| 33 | 18 |
| 34 | 12 |
| 35 | 16 |
| 36 | 15 |
| 37 | 21 |
| 38 | 15 |
| 39 | 19 |
| 40 | 17 |
| 41 | 24 |
| 42 | 20 |
| 43 | 27 |
| 44 | 26 |
| 45 | 30 |
| 46 | 22 |
| 47 | 30 |
| 48 | 29 |
| 49 | 36 |
| 50 | 30 |
| 51 | 35 |
| 52 | 33 |
| 53 | 42 |
| 54 | 36 |
| 55 | 42 |
| 56 | 40 |
| 57 | 46 |
| 58 | 36 |
| 59 | 46 |
| 60 | 44 |
| 61 | 54 |
| 62 | 44 |
| 63 | 50 |
| 64 | 47 |
| 65 | 55 |
| 66 | 49 |
| 67 | 60 |
| 68 | 58 |
| 69 | 65 |
| 70 | 57 |
| 71 | 69 |
[0,0,1,0,1,0,1,1,2,0,2,2,4,2,3,2,5,3,6,6,8,4,8,7, 10,6,9,8,13,11,16,15,18,12,16,15,21,15,19,17,24, 20,27,26,30,22,30,29,36,30,35,33,42,36,42,40,46, 36,46,44,54,44,50,47,55,49,60,58,65,57,69] |