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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 0 |
| 4 | 2 |
| 5 | 0 |
| 6 | 2 |
| 7 | 0 |
| 8 | 3 |
| 9 | 0 |
| 10 | 4 |
| 11 | 0 |
| 12 | 6 |
| 13 | 0 |
| 14 | 7 |
| 15 | 0 |
| 16 | 9 |
| 17 | 0 |
| 18 | 11 |
| 19 | 0 |
| 20 | 15 |
| 21 | 0 |
| 22 | 18 |
| 23 | 0 |
| 24 | 23 |
| 25 | 0 |
| 26 | 27 |
| 27 | 0 |
| 28 | 34 |
| 29 | 0 |
| 30 | 41 |
| 31 | 0 |
| 32 | 50 |
| 33 | 0 |
| 34 | 59 |
| 35 | 0 |
| 36 | 72 |
| 37 | 0 |
| 38 | 85 |
| 39 | 0 |
| 40 | 103 |
| 41 | 0 |
| 42 | 120 |
| 43 | 0 |
| 44 | 143 |
| 45 | 0 |
| 46 | 167 |
| 47 | 0 |
| 48 | 198 |
| 49 | 0 |
| 50 | 230 |
| 51 | 0 |
| 52 | 270 |
| 53 | 0 |
| 54 | 313 |
| 55 | 0 |
| 56 | 366 |
| 57 | 0 |
| 58 | 422 |
| 59 | 0 |
| 60 | 491 |
| 61 | 0 |
| 62 | 564 |
| 63 | 0 |
| 64 | 653 |
| 65 | 0 |
| 66 | 748 |
| 67 | 0 |
| 68 | 861 |
| 69 | 0 |
| 70 | 984 |
| 71 | 0 |
| 72 | 1130 |
| 73 | 0 |
| 74 | 1287 |
| 75 | 0 |
| 76 | 1471 |
| 77 | 0 |
[0,1,0,2,0,2,0,3,0,4,0,6,0,7,0,9,0,11,0,15,0,18,0, 23,0,27,0,34,0,41,0,50,0,59,0,72,0,85,0,103,0,120, 0,143,0,167,0,198,0,230,0,270,0,313,0,366,0,422,0, 491,0,564,0,653,0,748,0,861,0,984,0,1130,0,1287,0, 1471,0] |