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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 | 0 |
| 11 | 0 |
| 12 | 0 |
| 13 | 0 |
| 14 | 1 |
| 15 | 0 |
| 16 | 1 |
| 17 | 2 |
| 18 | 2 |
| 19 | 2 |
| 20 | 4 |
| 21 | 4 |
| 22 | 4 |
| 23 | 8 |
| 24 | 7 |
| 25 | 8 |
| 26 | 11 |
| 27 | 11 |
| 28 | 13 |
| 29 | 15 |
| 30 | 16 |
| 31 | 18 |
| 32 | 23 |
| 33 | 23 |
| 34 | 26 |
| 35 | 30 |
| 36 | 31 |
| 37 | 33 |
| 38 | 40 |
| 39 | 40 |
| 40 | 45 |
| 41 | 51 |
| 42 | 53 |
| 43 | 56 |
| 44 | 62 |
| 45 | 66 |
| 46 | 66 |
| 47 | 76 |
| 48 | 79 |
| 49 | 82 |
| 50 | 88 |
| 51 | 94 |
| 52 | 96 |
| 53 | 105 |
| 54 | 111 |
| 55 | 111 |
| 56 | 124 |
| 57 | 127 |
| 58 | 132 |
| 59 | 141 |
| 60 | 145 |
| 61 | 148 |
| 62 | 164 |
| 63 | 166 |
| 64 | 170 |
| 65 | 180 |
| 66 | 187 |
| 67 | 187 |
| 68 | 206 |
| 69 | 204 |
| 70 | 208 |
[0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,2,2,2,4,4,4,8,7, 8,11,11,13,15,16,18,23,23,26,30,31,33,40,40,45,51, 53,56,62,66,66,76,79,82,88,94,96,105,111,111,124, 127,132,141,145,148,164,166,170,180,187,187,206, 204,208] |