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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 4 |
| 3 | 8 |
| 4 | 14 |
| 5 | 24 |
| 6 | 42 |
| 7 | 76 |
| 8 | 142 |
| 9 | 270 |
| 10 | 518 |
| 11 | 998 |
| 12 | 1924 |
| 13 | 3712 |
| 14 | 7168 |
| 15 | 13856 |
| 16 | 26826 |
| 17 | 52018 |
| 18 | 101024 |
| 19 | 196496 |
| 20 | 382710 |
| 21 | 746326 |
| 22 | 1457084 |
| 23 | 2847688 |
| 24 | 5570840 |
| 25 | 10907820 |
| 26 | 21375520 |
| 27 | 41921164 |
| 28 | 82274428 |
| 29 | 161581188 |
| 30 | 317535452 |
| 31 | 624383548 |
| 32 | 1228435862 |
| 33 | 2418134866 |
[1,2,4,8,14,24,42,76,142,270,518,998,1924,3712, 7168,13856,26826,52018,101024,196496,382710, 746326,1457084,2847688,5570840,10907820,21375520, 41921164,82274428,161581188,317535452,624383548, 1228435862,2418134866] |