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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 6 |
| 4 | 6 |
| 5 | 7 |
| 6 | 8 |
| 7 | 9 |
| 8 | 10 |
| 9 | 9 |
| 10 | 12 |
| 11 | 12 |
| 12 | 15 |
| 13 | 14 |
| 14 | 12 |
| 15 | 14 |
| 16 | 13 |
| 17 | 18 |
| 18 | 19 |
| 19 | 18 |
| 20 | 15 |
| 21 | 18 |
| 22 | 15 |
| 23 | 20 |
| 24 | 14 |
| 25 | 24 |
| 26 | 21 |
| 27 | 18 |
| 28 | 21 |
| 29 | 24 |
| 30 | 18 |
| 31 | 24 |
| 32 | 21 |
| 33 | 27 |
| 34 | 33 |
| 35 | 30 |
| 36 | 28 |
| 37 | 28 |
| 38 | 32 |
| 39 | 36 |
| 40 | 30 |
| 41 | 21 |
| 42 | 26 |
| 43 | 27 |
| 44 | 24 |
| 45 | 27 |
| 46 | 38 |
| 47 | 30 |
| 48 | 36 |
| 49 | 35 |
| 50 | 45 |
| 51 | 36 |
| 52 | 42 |
| 53 | 39 |
| 54 | 26 |
| 55 | 44 |
| 56 | 28 |
| 57 | 40 |
| 58 | 51 |
| 59 | 30 |
| 60 | 36 |
| 61 | 28 |
| 62 | 48 |
| 63 | 54 |
| 64 | 42 |
| 65 | 45 |
| 66 | 38 |
| 67 | 31 |
| 68 | 39 |
| 69 | 36 |
| 70 | 48 |
| 71 | 60 |
| 72 | 54 |
[1,3,6,6,7,8,9,10,9,12,12,15,14,12,14,13,18,19,18, 15,18,15,20,14,24,21,18,21,24,18,24,21,27,33,30, 28,28,32,36,30,21,26,27,24,27,38,30,36,35,45,36, 42,39,26,44,28,40,51,30,36,28,48,54,42,45,38,31, 39,36,48,60,54] |