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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 1 |
| 3 | 0 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 2 |
| 9 | 2 |
| 10 | 3 |
| 11 | 2 |
| 12 | 3 |
| 13 | 3 |
| 14 | 4 |
| 15 | 4 |
| 16 | 5 |
| 17 | 5 |
| 18 | 7 |
| 19 | 6 |
| 20 | 8 |
| 21 | 7 |
| 22 | 9 |
| 23 | 9 |
| 24 | 11 |
| 25 | 11 |
| 26 | 13 |
| 27 | 13 |
| 28 | 15 |
| 29 | 15 |
| 30 | 17 |
| 31 | 17 |
| 32 | 20 |
| 33 | 20 |
| 34 | 23 |
| 35 | 23 |
| 36 | 26 |
| 37 | 26 |
| 38 | 29 |
| 39 | 29 |
| 40 | 33 |
| 41 | 33 |
| 42 | 37 |
| 43 | 37 |
| 44 | 41 |
| 45 | 42 |
| 46 | 45 |
| 47 | 46 |
| 48 | 50 |
| 49 | 51 |
| 50 | 56 |
| 51 | 56 |
| 52 | 61 |
| 53 | 62 |
| 54 | 67 |
| 55 | 68 |
| 56 | 73 |
| 57 | 74 |
| 58 | 80 |
| 59 | 81 |
| 60 | 87 |
| 61 | 88 |
[1,0,1,0,1,1,1,1,2,2,3,2,3,3,4,4,5,5,7,6,8,7,9,9, 11,11,13,13,15,15,17,17,20,20,23,23,26,26,29,29, 33,33,37,37,41,42,45,46,50,51,56,56,61,62,67,68, 73,74,80,81,87,88] |