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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 1 |
| 6 | 1 |
| 7 | 2 |
| 8 | 1 |
| 9 | 3 |
| 10 | 2 |
| 11 | 4 |
| 12 | 2 |
| 13 | 5 |
| 14 | 4 |
| 15 | 6 |
| 16 | 4 |
| 17 | 8 |
| 18 | 5 |
| 19 | 10 |
| 20 | 6 |
| 21 | 11 |
| 22 | 9 |
| 23 | 13 |
| 24 | 7 |
| 25 | 15 |
| 26 | 12 |
| 27 | 16 |
| 28 | 11 |
| 29 | 19 |
| 30 | 11 |
| 31 | 23 |
| 32 | 16 |
| 33 | 25 |
| 34 | 19 |
| 35 | 27 |
| 36 | 15 |
| 37 | 31 |
| 38 | 23 |
| 39 | 31 |
| 40 | 21 |
| 41 | 36 |
| 42 | 21 |
| 43 | 40 |
| 44 | 28 |
| 45 | 43 |
| 46 | 33 |
| 47 | 47 |
| 48 | 26 |
| 49 | 50 |
| 50 | 36 |
| 51 | 52 |
| 52 | 38 |
| 53 | 60 |
| 54 | 36 |
| 55 | 62 |
| 56 | 45 |
| 57 | 66 |
| 58 | 52 |
| 59 | 72 |
| 60 | 36 |
| 61 | 75 |
| 62 | 58 |
| 63 | 74 |
| 64 | 56 |
| 65 | 84 |
| 66 | 49 |
| 67 | 91 |
| 68 | 64 |
| 69 | 93 |
| 70 | 65 |
[0,0,0,0,1,1,2,1,3,2,4,2,5,4,6,4,8,5,10,6,11,9,13, 7,15,12,16,11,19,11,23,16,25,19,27,15,31,23,31,21, 36,21,40,28,43,33,47,26,50,36,52,38,60,36,62,45, 66,52,72,36,75,58,74,56,84,49,91,64,93,65] |