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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 0 |
| 5 | 2 |
| 6 | 3 |
| 7 | 0 |
| 8 | 3 |
| 9 | 5 |
| 10 | 7 |
| 11 | 0 |
| 12 | 4 |
| 13 | 6 |
| 14 | 9 |
| 15 | 11 |
| 16 | 0 |
| 17 | 5 |
| 18 | 8 |
| 19 | 12 |
| 20 | 15 |
| 21 | 19 |
| 22 | 0 |
| 23 | 6 |
| 24 | 9 |
| 25 | 13 |
| 26 | 16 |
| 27 | 21 |
| 28 | 23 |
| 29 | 0 |
| 30 | 7 |
| 31 | 11 |
| 32 | 16 |
| 33 | 20 |
| 34 | 26 |
| 35 | 29 |
| 36 | 35 |
| 37 | 0 |
| 38 | 8 |
| 39 | 12 |
| 40 | 18 |
| 41 | 22 |
| 42 | 29 |
| 43 | 32 |
| 44 | 39 |
| 45 | 43 |
| 46 | 0 |
| 47 | 9 |
| 48 | 14 |
| 49 | 20 |
| 50 | 25 |
| 51 | 33 |
| 52 | 36 |
| 53 | 44 |
| 54 | 49 |
| 55 | 55 |
| 56 | 0 |
| 57 | 10 |
| 58 | 15 |
| 59 | 22 |
| 60 | 27 |
| 61 | 35 |
| 62 | 38 |
| 63 | 47 |
| 64 | 52 |
| 65 | 59 |
| 66 | 63 |
| 67 | 0 |
| 68 | 11 |
| 69 | 17 |
| 70 | 25 |
| 71 | 31 |
| 72 | 40 |
| 73 | 44 |
| 74 | 54 |
| 75 | 60 |
| 76 | 68 |
| 77 | 73 |
| 78 | 83 |
[0,0,1,0,2,3,0,3,5,7,0,4,6,9,11,0,5,8,12,15,19,0, 6,9,13,16,21,23,0,7,11,16,20,26,29,35,0,8,12,18, 22,29,32,39,43,0,9,14,20,25,33,36,44,49,55,0,10, 15,22,27,35,38,47,52,59,63,0,11,17,25,31,40,44,54, 60,68,73,83] |