The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 6 |
| 4 | 4 |
| 5 | 5 |
| 6 | 5 |
| 7 | 6 |
| 8 | 6 |
| 9 | 9 |
| 10 | 11 |
| 11 | 12 |
| 12 | 14 |
| 13 | 15 |
| 14 | 16 |
| 15 | 18 |
| 16 | 19 |
| 17 | 23 |
| 18 | 25 |
| 19 | 27 |
| 20 | 30 |
| 21 | 31 |
| 22 | 33 |
| 23 | 36 |
| 24 | 39 |
| 25 | 42 |
| 26 | 45 |
[1,3,6,4,5,5,6,6,9,11,12,14,15,16,18,19,23,25,27, 30,31,33,36,39,42,45] |