The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 4 |
| 5 | 2 |
| 6 | 3 |
| 7 | 4 |
| 8 | 6 |
| 9 | 3 |
| 10 | 4 |
| 11 | 9 |
| 12 | 6 |
| 13 | 8 |
| 14 | 4 |
| 15 | 5 |
| 16 | 9 |
| 17 | 12 |
| 18 | 8 |
| 19 | 10 |
| 20 | 5 |
| 21 | 6 |
| 22 | 16 |
| 23 | 12 |
| 24 | 15 |
| 25 | 10 |
| 26 | 12 |
| 27 | 6 |
| 28 | 7 |
| 29 | 16 |
| 30 | 20 |
| 31 | 15 |
| 32 | 18 |
| 33 | 12 |
| 34 | 14 |
| 35 | 7 |
| 36 | 8 |
| 37 | 25 |
| 38 | 20 |
| 39 | 24 |
| 40 | 18 |
| 41 | 21 |
| 42 | 14 |
| 43 | 16 |
| 44 | 8 |
| 45 | 9 |
| 46 | 25 |
| 47 | 30 |
| 48 | 24 |
| 49 | 28 |
| 50 | 21 |
| 51 | 24 |
| 52 | 16 |
| 53 | 18 |
| 54 | 9 |
| 55 | 10 |
[1,1,2,4,2,3,4,6,3,4,9,6,8,4,5,9,12,8,10,5,6,16, 12,15,10,12,6,7,16,20,15,18,12,14,7,8,25,20,24,18, 21,14,16,8,9,25,30,24,28,21,24,16,18,9,10] |