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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 3 |
| 4 | 5 |
| 5 | 9 |
| 6 | 17 |
| 7 | 27 |
| 8 | 45 |
| 9 | 51 |
| 10 | 53 |
| 11 | 93 |
| 12 | 197 |
| 13 | 213 |
| 14 | 221 |
| 15 | 245 |
| 16 | 279 |
| 17 | 845 |
| 18 | 927 |
| 19 | 2055 |
| 20 | 2895 |
| 21 | 3615 |
| 22 | 5613 |
| 23 | 12753 |
| 24 | 15737 |
| 25 | 17813 |
| 26 | 18545 |
| 27 | 22629 |
| 28 | 47859 |
| 29 | 48797 |
[0,1,3,5,9,17,27,45,51,53,93,197,213,221,245,279, 845,927,2055,2895,3615,5613,12753,15737,17813, 18545,22629,47859,48797] |