| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 2 |
| 3 | 0 |
| 4 | 3 |
| 5 | 0 |
| 6 | 4 |
| 7 | 0 |
| 8 | 5 |
| 9 | 0 |
| 10 | 7 |
| 11 | 1 |
| 12 | 9 |
| 13 | 2 |
| 14 | 11 |
| 15 | 3 |
| 16 | 13 |
| 17 | 4 |
| 18 | 15 |
| 19 | 5 |
| 20 | 18 |
| 21 | 7 |
| 22 | 21 |
| 23 | 9 |
| 24 | 24 |
| 25 | 11 |
| 26 | 27 |
| 27 | 13 |
| 28 | 30 |
| 29 | 15 |
| 30 | 34 |
| 31 | 18 |
| 32 | 38 |
| 33 | 21 |
| 34 | 42 |
| 35 | 24 |
| 36 | 46 |
| 37 | 27 |
| 38 | 50 |
| 39 | 30 |
| 40 | 55 |
| 41 | 34 |
| 42 | 60 |
| 43 | 38 |
| 44 | 65 |
| 45 | 42 |
| 46 | 70 |
| 47 | 46 |
| 48 | 75 |
| 49 | 50 |
| 50 | 81 |
| 51 | 55 |
| 52 | 87 |
| 53 | 60 |
| 54 | 93 |
| 55 | 65 |
| 56 | 99 |
| 57 | 70 |
| 58 | 105 |
| 59 | 75 |
| 60 | 112 |
| 61 | 81 |
| 62 | 119 |
| 63 | 87 |
| 64 | 126 |
| 65 | 93 |
| 66 | 133 |
| 67 | 99 |
| 68 | 140 |
| 69 | 105 |
| 70 | 148 |
| 71 | 112 |
| 72 | 156 |
| 73 | 119 |
| 74 | 164 |
[1,0,2,0,3,0,4,0,5,0,7,1,9,2,11,3,13,4,15,5,18,7, 21,9,24,11,27,13,30,15,34,18,38,21,42,24,46,27,50, 30,55,34,60,38,65,42,70,46,75,50,81,55,87,60,93, 65,99,70,105,75,112,81,119,87,126,93,133,99,140, 105,148,112,156,119,164] |