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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 2 |
| 2 | 4 |
| 3 | 8 |
| 4 | 10 |
| 5 | 16 |
| 6 | 18 |
| 7 | 20 |
| 8 | 32 |
| 9 | 34 |
| 10 | 36 |
| 11 | 40 |
| 12 | 42 |
| 13 | 64 |
| 14 | 66 |
| 15 | 68 |
| 16 | 72 |
| 17 | 74 |
| 18 | 80 |
| 19 | 82 |
| 20 | 84 |
| 21 | 128 |
| 22 | 130 |
| 23 | 132 |
[0,2,4,8,10,16,18,20,32,34,36,40,42,64,66,68,72, 74,80,82,84,128,130,132] |