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