| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 2 |
| 2 | 4 |
| 3 | 1 |
| 4 | 6 |
| 5 | 7 |
| 6 | 8 |
| 7 | 10 |
| 8 | 12 |
| 9 | 11 |
| 10 | 14 |
| 11 | 16 |
| 12 | 18 |
| 13 | 15 |
| 14 | 20 |
| 15 | 22 |
| 16 | 24 |
| 17 | 19 |
| 18 | 26 |
| 19 | 28 |
| 20 | 30 |
| 21 | 23 |
| 22 | 32 |
| 23 | 34 |
| 24 | 36 |
| 25 | 27 |
| 26 | 38 |
| 27 | 40 |
| 28 | 42 |
| 29 | 31 |
| 30 | 44 |
| 31 | 46 |
| 32 | 48 |
| 33 | 35 |
| 34 | 50 |
| 35 | 52 |
| 36 | 54 |
| 37 | 39 |
| 38 | 56 |
| 39 | 58 |
| 40 | 60 |
| 41 | 43 |
| 42 | 62 |
| 43 | 64 |
| 44 | 66 |
| 45 | 47 |
| 46 | 68 |
| 47 | 70 |
| 48 | 72 |
| 49 | 51 |
| 50 | 74 |
| 51 | 76 |
| 52 | 78 |
| 53 | 55 |
| 54 | 80 |
| 55 | 82 |
| 56 | 84 |
| 57 | 59 |
| 58 | 86 |
| 59 | 88 |
| 60 | 90 |
| 61 | 63 |
| 62 | 92 |
| 63 | 94 |
| 64 | 96 |
| 65 | 67 |
| 66 | 98 |
| 67 | 100 |
| 68 | 102 |
| 69 | 71 |
| 70 | 104 |
[0,2,4,1,6,7,8,10,12,11,14,16,18,15,20,22,24,19, 26,28,30,23,32,34,36,27,38,40,42,31,44,46,48,35, 50,52,54,39,56,58,60,43,62,64,66,47,68,70,72,51, 74,76,78,55,80,82,84,59,86,88,90,63,92,94,96,67, 98,100,102,71,104] |