| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 3 |
| 3 | 2 |
| 4 | 4 |
| 5 | 9 |
| 6 | 6 |
| 7 | 11 |
| 8 | 12 |
| 9 | 5 |
| 10 | 7 |
| 11 | 10 |
| 12 | 8 |
| 13 | 13 |
| 14 | 27 |
| 15 | 18 |
| 16 | 29 |
| 17 | 30 |
| 18 | 15 |
| 19 | 32 |
| 20 | 33 |
| 21 | 20 |
| 22 | 35 |
| 23 | 36 |
| 24 | 21 |
| 25 | 38 |
| 26 | 39 |
| 27 | 14 |
| 28 | 16 |
| 29 | 19 |
| 30 | 23 |
| 31 | 25 |
| 32 | 28 |
| 33 | 24 |
| 34 | 34 |
| 35 | 37 |
| 36 | 17 |
| 37 | 22 |
| 38 | 31 |
| 39 | 26 |
| 40 | 40 |
| 41 | 81 |
| 42 | 54 |
| 43 | 83 |
| 44 | 84 |
| 45 | 45 |
| 46 | 86 |
| 47 | 87 |
| 48 | 56 |
| 49 | 89 |
| 50 | 90 |
| 51 | 57 |
| 52 | 92 |
| 53 | 93 |
| 54 | 42 |
| 55 | 95 |
| 56 | 96 |
| 57 | 59 |
| 58 | 98 |
| 59 | 99 |
| 60 | 60 |
| 61 | 101 |
| 62 | 102 |
| 63 | 47 |
| 64 | 104 |
| 65 | 105 |
| 66 | 62 |
| 67 | 107 |
| 68 | 108 |
| 69 | 63 |
| 70 | 110 |
| 71 | 111 |
| 72 | 48 |
| 73 | 113 |
| 74 | 114 |
| 75 | 65 |
| 76 | 116 |
| 77 | 117 |
| 78 | 66 |
| 79 | 119 |
| 80 | 120 |
| 81 | 41 |
[0,1,3,2,4,9,6,11,12,5,7,10,8,13,27,18,29,30,15, 32,33,20,35,36,21,38,39,14,16,19,23,25,28,24,34, 37,17,22,31,26,40,81,54,83,84,45,86,87,56,89,90, 57,92,93,42,95,96,59,98,99,60,101,102,47,104,105, 62,107,108,63,110,111,48,113,114,65,116,117,66, 119,120,41] |