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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 1 |
| 6 | 0 |
| 7 | 0 |
| 8 | 0 |
| 9 | 0 |
| 10 | 0 |
| 11 | 1 |
| 12 | 1 |
| 13 | 1 |
| 14 | 1 |
| 15 | 1 |
| 16 | 1 |
| 17 | 2 |
| 18 | 2 |
| 19 | 3 |
| 20 | 3 |
| 21 | 3 |
| 22 | 3 |
| 23 | 5 |
| 24 | 5 |
| 25 | 7 |
| 26 | 8 |
| 27 | 10 |
| 28 | 11 |
| 29 | 15 |
| 30 | 16 |
| 31 | 20 |
| 32 | 22 |
| 33 | 26 |
| 34 | 28 |
| 35 | 35 |
| 36 | 38 |
| 37 | 46 |
| 38 | 52 |
| 39 | 62 |
| 40 | 70 |
| 41 | 85 |
| 42 | 95 |
| 43 | 112 |
| 44 | 127 |
| 45 | 148 |
| 46 | 166 |
| 47 | 195 |
| 48 | 219 |
| 49 | 254 |
| 50 | 288 |
| 51 | 332 |
| 52 | 375 |
| 53 | 435 |
| 54 | 489 |
| 55 | 562 |
| 56 | 635 |
| 57 | 726 |
| 58 | 817 |
| 59 | 936 |
| 60 | 1051 |
| 61 | 1198 |
| 62 | 1348 |
| 63 | 1531 |
| 64 | 1721 |
| 65 | 1957 |
| 66 | 2196 |
| 67 | 2489 |
[0,0,0,0,1,0,0,0,0,0,1,1,1,1,1,1,2,2,3,3,3,3,5,5, 7,8,10,11,15,16,20,22,26,28,35,38,46,52,62,70,85, 95,112,127,148,166,195,219,254,288,332,375,435, 489,562,635,726,817,936,1051,1198,1348,1531,1721, 1957,2196,2489] |