| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 2 |
| 3 | 0 |
| 4 | 3 |
| 5 | 0 |
| 6 | 4 |
| 7 | 1 |
| 8 | 5 |
| 9 | 2 |
| 10 | 6 |
| 11 | 3 |
| 12 | 7 |
| 13 | 4 |
| 14 | 9 |
| 15 | 5 |
| 16 | 11 |
| 17 | 6 |
| 18 | 13 |
| 19 | 7 |
| 20 | 15 |
| 21 | 9 |
| 22 | 17 |
| 23 | 11 |
| 24 | 19 |
| 25 | 13 |
| 26 | 21 |
| 27 | 15 |
| 28 | 24 |
| 29 | 17 |
| 30 | 27 |
| 31 | 19 |
| 32 | 30 |
| 33 | 21 |
| 34 | 33 |
| 35 | 24 |
| 36 | 36 |
| 37 | 27 |
| 38 | 39 |
| 39 | 30 |
| 40 | 42 |
| 41 | 33 |
| 42 | 46 |
| 43 | 36 |
| 44 | 50 |
| 45 | 39 |
| 46 | 54 |
| 47 | 42 |
| 48 | 58 |
| 49 | 46 |
| 50 | 62 |
| 51 | 50 |
| 52 | 66 |
| 53 | 54 |
| 54 | 70 |
| 55 | 58 |
| 56 | 75 |
| 57 | 62 |
| 58 | 80 |
| 59 | 66 |
| 60 | 85 |
| 61 | 70 |
| 62 | 90 |
| 63 | 75 |
| 64 | 95 |
| 65 | 80 |
| 66 | 100 |
| 67 | 85 |
| 68 | 105 |
| 69 | 90 |
| 70 | 111 |
| 71 | 95 |
| 72 | 117 |
| 73 | 100 |
| 74 | 123 |
[1,0,2,0,3,0,4,1,5,2,6,3,7,4,9,5,11,6,13,7,15,9, 17,11,19,13,21,15,24,17,27,19,30,21,33,24,36,27, 39,30,42,33,46,36,50,39,54,42,58,46,62,50,66,54, 70,58,75,62,80,66,85,70,90,75,95,80,100,85,105,90, 111,95,117,100,123] |