The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 5 |
| 5 | 4 |
| 6 | 6 |
| 7 | 9 |
| 8 | 10 |
| 9 | 14 |
| 10 | 8 |
| 11 | 15 |
| 12 | 20 |
| 13 | 13 |
| 14 | 7 |
| 15 | 21 |
| 16 | 27 |
| 17 | 28 |
| 18 | 35 |
| 19 | 19 |
| 20 | 36 |
| 21 | 44 |
| 22 | 45 |
| 23 | 54 |
| 24 | 26 |
| 25 | 55 |
| 26 | 65 |
| 27 | 34 |
| 28 | 12 |
| 29 | 66 |
[1,2,3,5,4,6,9,10,14,8,15,20,13,7,21,27,28,35,19, 36,44,45,54,26,55,65,34,12,66] |