The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 5 |
| 7 | 6 |
| 8 | 8 |
| 9 | 11 |
| 10 | 12 |
| 11 | 13 |
| 12 | 15 |
| 13 | 18 |
| 14 | 22 |
| 15 | 27 |
| 16 | 33 |
| 17 | 41 |
| 18 | 42 |
| 19 | 43 |
| 20 | 45 |
| 21 | 48 |
| 22 | 52 |
| 23 | 57 |
| 24 | 63 |
| 25 | 71 |
| 26 | 82 |
[1,1,2,3,4,5,6,8,11,12,13,15,18,22,27,33,41,42,43, 45,48,52,57,63,71,82] |