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