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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 0 |
| 5 | 3 |
| 6 | 2 |
| 7 | 0 |
| 8 | 5 |
| 9 | 4 |
| 10 | 5 |
| 11 | 0 |
| 12 | 7 |
| 13 | 6 |
| 14 | 9 |
| 15 | 8 |
| 16 | 0 |
| 17 | 9 |
| 18 | 8 |
| 19 | 13 |
| 20 | 12 |
| 21 | 13 |
| 22 | 0 |
| 23 | 11 |
| 24 | 10 |
| 25 | 17 |
| 26 | 16 |
| 27 | 19 |
| 28 | 18 |
| 29 | 0 |
| 30 | 13 |
| 31 | 12 |
| 32 | 21 |
| 33 | 20 |
| 34 | 25 |
| 35 | 24 |
| 36 | 25 |
| 37 | 0 |
| 38 | 15 |
| 39 | 14 |
| 40 | 25 |
| 41 | 24 |
| 42 | 31 |
| 43 | 30 |
| 44 | 33 |
| 45 | 32 |
| 46 | 0 |
| 47 | 17 |
| 48 | 16 |
| 49 | 29 |
| 50 | 28 |
| 51 | 37 |
| 52 | 36 |
| 53 | 41 |
| 54 | 40 |
| 55 | 41 |
| 56 | 0 |
| 57 | 19 |
| 58 | 18 |
| 59 | 33 |
| 60 | 32 |
| 61 | 43 |
| 62 | 42 |
| 63 | 49 |
| 64 | 48 |
| 65 | 51 |
| 66 | 50 |
| 67 | 0 |
| 68 | 21 |
| 69 | 20 |
| 70 | 37 |
| 71 | 36 |
| 72 | 49 |
| 73 | 48 |
| 74 | 57 |
| 75 | 56 |
| 76 | 61 |
| 77 | 60 |
| 78 | 61 |
[0,0,1,0,3,2,0,5,4,5,0,7,6,9,8,0,9,8,13,12,13,0, 11,10,17,16,19,18,0,13,12,21,20,25,24,25,0,15,14, 25,24,31,30,33,32,0,17,16,29,28,37,36,41,40,41,0, 19,18,33,32,43,42,49,48,51,50,0,21,20,37,36,49,48, 57,56,61,60,61] |