The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 3 |
| 6 | 5 |
| 7 | 5 |
| 8 | 0 |
| 9 | 5 |
| 10 | 7 |
| 11 | 8 |
| 12 | 0 |
| 13 | 11 |
| 14 | 5 |
| 15 | 0 |
| 16 | 0 |
| 17 | 14 |
| 18 | 11 |
| 19 | 15 |
| 20 | 0 |
| 21 | 0 |
| 22 | 19 |
| 23 | 21 |
| 24 | 0 |
| 25 | 23 |
| 26 | 19 |
| 27 | 23 |
| 28 | 0 |
| 29 | 27 |
| 30 | 0 |
| 31 | 24 |
| 32 | 0 |
| 33 | 0 |
| 34 | 31 |
| 35 | 0 |
| 36 | 0 |
| 37 | 35 |
| 38 | 33 |
| 39 | 0 |
| 40 | 0 |
| 41 | 35 |
| 42 | 0 |
| 43 | 34 |
| 44 | 0 |
| 45 | 0 |
| 46 | 43 |
| 47 | 45 |
| 48 | 0 |
| 49 | 47 |
| 50 | 47 |
| 51 | 0 |
| 52 | 0 |
| 53 | 51 |
| 54 | 47 |
| 55 | 0 |
| 56 | 0 |
| 57 | 0 |
| 58 | 55 |
| 59 | 56 |
| 60 | 0 |
| 61 | 59 |
| 62 | 55 |
| 63 | 0 |
| 64 | 0 |
| 65 | 0 |
| 66 | 0 |
| 67 | 63 |
| 68 | 0 |
| 69 | 0 |
| 70 | 0 |
| 71 | 69 |
| 72 | 0 |
| 73 | 68 |
| 74 | 69 |
| 75 | 0 |
| 76 | 0 |
| 77 | 0 |
| 78 | 0 |
| 79 | 77 |
| 80 | 0 |
| 81 | 77 |
| 82 | 75 |
| 83 | 80 |
| 84 | 0 |
| 85 | 0 |
[0,0,1,2,3,3,5,5,0,5,7,8,0,11,5,0,0,14,11,15,0,0, 19,21,0,23,19,23,0,27,0,24,0,0,31,0,0,35,33,0,0, 35,0,34,0,0,43,45,0,47,47,0,0,51,47,0,0,0,55,56,0, 59,55,0,0,0,0,63,0,0,0,69,0,68,69,0,0,0,0,77,0,77, 75,80,0,0] |