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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 0 |
| 9 | 0 |
| 10 | 1 |
| 11 | 0 |
| 12 | 0 |
| 13 | 0 |
| 14 | 0 |
| 15 | 0 |
| 16 | 0 |
| 17 | 0 |
| 18 | 0 |
| 19 | 0 |
| 20 | 1 |
| 21 | 1 |
| 22 | 1 |
| 23 | 1 |
| 24 | 1 |
| 25 | 1 |
| 26 | 1 |
| 27 | 1 |
| 28 | 1 |
| 29 | 1 |
| 30 | 2 |
| 31 | 2 |
| 32 | 3 |
| 33 | 3 |
| 34 | 4 |
| 35 | 4 |
| 36 | 5 |
| 37 | 5 |
| 38 | 6 |
| 39 | 6 |
| 40 | 8 |
| 41 | 8 |
| 42 | 10 |
| 43 | 11 |
| 44 | 13 |
| 45 | 14 |
| 46 | 17 |
| 47 | 18 |
| 48 | 21 |
| 49 | 23 |
| 50 | 27 |
| 51 | 29 |
| 52 | 34 |
| 53 | 37 |
| 54 | 43 |
| 55 | 47 |
| 56 | 54 |
| 57 | 59 |
| 58 | 68 |
| 59 | 74 |
| 60 | 85 |
| 61 | 93 |
| 62 | 106 |
| 63 | 116 |
| 64 | 132 |
| 65 | 145 |
| 66 | 164 |
| 67 | 180 |
| 68 | 203 |
| 69 | 223 |
| 70 | 252 |
| 71 | 276 |
| 72 | 310 |
| 73 | 341 |
| 74 | 382 |
| 75 | 420 |
| 76 | 470 |
| 77 | 516 |
| 78 | 576 |
| 79 | 633 |
| 80 | 706 |
| 81 | 775 |
| 82 | 863 |
[0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,1,1,1,1,1, 1,1,1,1,1,2,2,3,3,4,4,5,5,6,6,8,8,10,11,13,14,17, 18,21,23,27,29,34,37,43,47,54,59,68,74,85,93,106, 116,132,145,164,180,203,223,252,276,310,341,382, 420,470,516,576,633,706,775,863] |