The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 0 |
| 4 | 0 |
| 5 | 1 |
| 6 | 0 |
| 7 | 2 |
| 8 | 1 |
| 9 | 1 |
| 10 | 1 |
| 11 | 3 |
| 12 | 1 |
| 13 | 4 |
| 14 | 2 |
| 15 | 2 |
| 16 | 2 |
| 17 | 5 |
| 18 | 2 |
| 19 | 6 |
| 20 | 3 |
| 21 | 3 |
| 22 | 3 |
| 23 | 7 |
| 24 | 3 |
| 25 | 3 |
| 26 | 3 |
| 27 | 3 |
| 28 | 3 |
| 29 | 8 |
| 30 | 4 |
| 31 | 9 |
| 32 | 4 |
| 33 | 4 |
| 34 | 4 |
| 35 | 4 |
| 36 | 4 |
| 37 | 10 |
| 38 | 5 |
| 39 | 5 |
| 40 | 5 |
| 41 | 11 |
| 42 | 5 |
| 43 | 12 |
| 44 | 6 |
| 45 | 6 |
| 46 | 6 |
| 47 | 13 |
| 48 | 6 |
| 49 | 6 |
| 50 | 6 |
| 51 | 6 |
| 52 | 6 |
| 53 | 14 |
| 54 | 7 |
| 55 | 7 |
| 56 | 7 |
| 57 | 7 |
| 58 | 7 |
| 59 | 15 |
| 60 | 7 |
| 61 | 16 |
| 62 | 8 |
| 63 | 8 |
| 64 | 8 |
| 65 | 8 |
| 66 | 8 |
| 67 | 17 |
| 68 | 8 |
| 69 | 8 |
| 70 | 8 |
| 71 | 18 |
| 72 | 9 |
| 73 | 19 |
| 74 | 9 |
| 75 | 9 |
| 76 | 9 |
| 77 | 9 |
| 78 | 9 |
| 79 | 20 |
| 80 | 10 |
| 81 | 10 |
| 82 | 10 |
| 83 | 21 |
| 84 | 10 |
| 85 | 10 |
| 86 | 10 |
| 87 | 10 |
| 88 | 10 |
| 89 | 22 |
| 90 | 11 |
| 91 | 11 |
| 92 | 11 |
[1,1,0,0,1,0,2,1,1,1,3,1,4,2,2,2,5,2,6,3,3,3,7,3, 3,3,3,3,8,4,9,4,4,4,4,4,10,5,5,5,11,5,12,6,6,6,13, 6,6,6,6,6,14,7,7,7,7,7,15,7,16,8,8,8,8,8,17,8,8,8, 18,9,19,9,9,9,9,9,20,10,10,10,21,10,10,10,10,10, 22,11,11,11] |