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