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