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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 3 |
| 2 | 9 |
| 3 | 15 |
| 4 | 33 |
| 5 | 45 |
| 6 | 51 |
| 7 | 63 |
| 8 | 129 |
| 9 | 153 |
| 10 | 165 |
| 11 | 189 |
| 12 | 195 |
| 13 | 219 |
| 14 | 231 |
| 15 | 255 |
| 16 | 513 |
| 17 | 561 |
| 18 | 585 |
| 19 | 633 |
| 20 | 645 |
| 21 | 693 |
| 22 | 717 |
| 23 | 765 |
| 24 | 771 |
| 25 | 819 |
| 26 | 843 |
| 27 | 891 |
| 28 | 903 |
| 29 | 951 |
| 30 | 975 |
| 31 | 1023 |
| 32 | 2049 |
| 33 | 2145 |
| 34 | 2193 |
| 35 | 2289 |
| 36 | 2313 |
| 37 | 2409 |
| 38 | 2457 |
| 39 | 2553 |
| 40 | 2565 |
| 41 | 2661 |
| 42 | 2709 |
| 43 | 2805 |
| 44 | 2829 |
| 45 | 2925 |
| 46 | 2973 |
| 47 | 3069 |
| 48 | 3075 |
| 49 | 3171 |
| 50 | 3219 |
| 51 | 3315 |
[0,3,9,15,33,45,51,63,129,153,165,189,195,219,231, 255,513,561,585,633,645,693,717,765,771,819,843, 891,903,951,975,1023,2049,2145,2193,2289,2313, 2409,2457,2553,2565,2661,2709,2805,2829,2925,2973, 3069,3075,3171,3219,3315] |