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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 0 |
| 4 | 2 |
| 5 | 0 |
| 6 | 2 |
| 7 | 1 |
| 8 | 3 |
| 9 | 2 |
| 10 | 3 |
| 11 | 3 |
| 12 | 5 |
| 13 | 4 |
| 14 | 7 |
| 15 | 5 |
| 16 | 10 |
| 17 | 7 |
| 18 | 13 |
| 19 | 10 |
| 20 | 16 |
| 21 | 15 |
| 22 | 20 |
| 23 | 20 |
| 24 | 26 |
| 25 | 26 |
| 26 | 34 |
| 27 | 33 |
| 28 | 45 |
| 29 | 42 |
| 30 | 56 |
| 31 | 55 |
| 32 | 70 |
| 33 | 71 |
| 34 | 86 |
| 35 | 91 |
| 36 | 109 |
| 37 | 113 |
| 38 | 136 |
| 39 | 140 |
| 40 | 170 |
| 41 | 174 |
| 42 | 209 |
| 43 | 217 |
| 44 | 255 |
| 45 | 270 |
| 46 | 311 |
| 47 | 331 |
| 48 | 381 |
| 49 | 404 |
| 50 | 465 |
| 51 | 491 |
| 52 | 565 |
| 53 | 597 |
| 54 | 681 |
| 55 | 726 |
| 56 | 820 |
| 57 | 878 |
| 58 | 985 |
| 59 | 1056 |
| 60 | 1185 |
| 61 | 1265 |
| 62 | 1419 |
| 63 | 1515 |
[0,1,0,2,0,2,1,3,2,3,3,5,4,7,5,10,7,13,10,16,15, 20,20,26,26,34,33,45,42,56,55,70,71,86,91,109,113, 136,140,170,174,209,217,255,270,311,331,381,404, 465,491,565,597,681,726,820,878,985,1056,1185, 1265,1419,1515] |