| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 2 |
| 4 | 5 |
| 5 | 4 |
| 6 | 3 |
| 7 | 7 |
| 8 | 6 |
| 9 | 5 |
| 10 | 4 |
| 11 | 9 |
| 12 | 8 |
| 13 | 7 |
| 14 | 6 |
| 15 | 5 |
| 16 | 11 |
| 17 | 10 |
| 18 | 9 |
| 19 | 8 |
| 20 | 7 |
| 21 | 6 |
| 22 | 13 |
| 23 | 12 |
| 24 | 11 |
| 25 | 10 |
| 26 | 9 |
| 27 | 8 |
| 28 | 7 |
| 29 | 15 |
| 30 | 14 |
| 31 | 13 |
| 32 | 12 |
| 33 | 11 |
| 34 | 10 |
| 35 | 9 |
| 36 | 8 |
| 37 | 17 |
| 38 | 16 |
| 39 | 15 |
| 40 | 14 |
| 41 | 13 |
| 42 | 12 |
| 43 | 11 |
| 44 | 10 |
| 45 | 9 |
| 46 | 19 |
| 47 | 18 |
| 48 | 17 |
| 49 | 16 |
| 50 | 15 |
| 51 | 14 |
| 52 | 13 |
| 53 | 12 |
| 54 | 11 |
| 55 | 10 |
| 56 | 21 |
| 57 | 20 |
| 58 | 19 |
| 59 | 18 |
| 60 | 17 |
| 61 | 16 |
| 62 | 15 |
| 63 | 14 |
| 64 | 13 |
| 65 | 12 |
| 66 | 11 |
[1,3,2,5,4,3,7,6,5,4,9,8,7,6,5,11,10,9,8,7,6,13, 12,11,10,9,8,7,15,14,13,12,11,10,9,8,17,16,15,14, 13,12,11,10,9,19,18,17,16,15,14,13,12,11,10,21,20, 19,18,17,16,15,14,13,12,11] |